audiobriefs
Topic

Improvisation

Composing in public, without a net.

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10:52

Electric Mistress

Electro-Harmonix · 1976

The Electric Mistress is an analog flanger from Electro-Harmonix, first sold in 1976 and the first flanger in pedal format. Every version after the first blue and red one has a Filter Matrix mode that freezes the flange at any point for chime-like tones. The Deluxe version is still in production, and NEO Mistress and Stereo Electric Mistress are digital recreations.

9:08

Alembic Series I

Alembic

The Alembic Series I is a 1977 US-made 4-string bass with rabl neck and top, mahogany body, bne key, brass bridge and nut, and 24-fret pearl-inlaid neck. Its electronics include two single-coil pickups, a central dummy hum pickup, stereo 5-pin XLR output, external power supply, dual volume/tone controls, dual 3-position Q-switches, and a 3-position + Off selector. It delivers precise, clear, full-range sound suited to slap, fingerstyle, and pick playing—but is relatively heavy, fragile (headstock prone to breakage), and has non-independent string height adjustment at the bridge.

8:18

Ibanez Artist AR300

Ibanez

The Ibanez AR300 is a 1981 Japanese-made, violin-shaped electric guitar with a glued-in neck, two humbuckers, 22 frets, and four dedicated controls. It weighs like a vintage Les Paul and plays with warmth and authority in blues and jazz—but resists speed, modern ergonomics, and tonal neutrality.

8:47

Boss BD-2 Blues Driver

Boss

The Boss BD-2 Blues Driver is an overdrive pedal sold since at least 2003. Users report its tone as round, expressive, smooth, and sultry. It responds sharply to small knob adjustments. It covers a wide sonic range — from clean overdrive to heavy grunge. It is available new and second-hand. Prices recorded are $50 (used), $79.99 (Kayes Music Scene), and $80 (Sam Ash).

9:13

Boss PS-2 Digital Pitch Shifter/Delay

Boss

The Boss PS-2 is a mono digital pitch shifter and delay pedal with fixed +1/−1 octave modes and three delay time ranges. It delivers immediate, stable octave doubling and atmospheric delay tails — but offers no stereo output, no expression control, and no fine pitch adjustment. It belongs on a gigging guitarist’s board, not in a stereo studio chain.

8:21

Ibanez Tube Screamer TS808

Ibanez

The Ibanez TS808 Tube Screamer Reissue is an analog overdrive pedal in the Tube Screamer series. It has three knobs: tone, level, and overdrive. It uses the JRC4558 chip. It runs on a 9-volt battery or AC adapter. Its metal housing is 4.9" x 2.8" x 2" and weighs just over a pound. It delivers warm, smooth, mid-heavy overdrive suited for solos and blues-rock—not high-gain riffing. It is very strongly built.

8:09

Fender Champ 5F1

Fender

The Fender Champ 5F1 is a tube combo guitar amplifier made from 1958 to 1964. It has volume and tone controls only. It uses a single 6V6 power tube driving an 8-inch speaker. It breaks up early and stays simple. It does not offer clean headroom, effects, or expandability.

10:25

Electro-Harmonix Deluxe Electric Mistress

Electro-Harmonix

An analog stereo flanger and filter matrix stomp box for electric guitar. It runs on a dedicated 24 V power supply. It has input, effect out, and clean output jacks. It uses three knobs — color, range, and rate — plus a switch for the filter matrix function. It is not rack-mountable.

7:37

Oberheim/Gibson Echoplex Digital Pro

Oberheim/Gibson

The Oberheim/Gibson Echoplex Digital Pro is a 1994 hardware looper built for live performance. It records 16-bit/44.1kHz audio to RAM, ships with 50 seconds of memory (expandable to 200), supports unlimited overdubs per loop, stores up to nine loops, and offers MIDI sync, reverse looping, and multiplay. It has no filtering, time stretching, pitch shifting, stereo effects, or resampling.

8:54

Fender Lead III

Fender

The Fender Lead III is a discontinued STC-shaped electric guitar with a smaller body and small-size neck designed for lead playing. Its pickup configuration delivers a wide tonal range: crunchy distortion from the bridge pickup and smooth clean tones from the neck pickup.

9:34

Rhodes piano

Fender Rhodes

The Rhodes piano is an electromechanical electric piano invented by Harold Rhodes. It uses hammers to strike metal tines whose vibrations are captured by electromagnetic pickups. It outputs an electrical signal requiring external amplification for full fidelity. It makes audible sound unplugged — quieter and thinner — and features a vocal-range frequency gap that supports singing without masking.

8:35

TC Electronic Stereo Chorus+

TC Electronic

The Rockman Stereo Chorus is a fixed-function stereo chorus pedal for guitar. It has no tempo sync, no expression input, no adjustable delay or feedback. It spreads the signal across two amps or channels. It is not made by TC Electronic. Its only controls are rate and depth. It is usable, but inflexible.

8:03

Gibson Super 400 CES

Gibson

The Gibson Super 400 CES (2011) is a discontinued hollow/semi-hollow electric guitar. Its name, category, and discontinuation are the only verified facts. It has no technical specifications, no availability, and no documented use. It does not function as an instrument today.

8:31

Way Huge Swollen Pickle

Way Huge

A fuzz pedal named Swollen Pickle, sold under multiple variants. The source confirms only its category and naming variations — nothing about sound, circuit, usability, or musical role.

9:41

Z.Vex Fuzz Factory

Z.Vex

The Z.Vex Fuzz Factory is a 1995 fuzz pedal built around unstable germanium transistors whose biasing is manipulated via five interactive controls; it originated from Zachary Vex’s accidental discovery of extreme sonic behavior when boosting a surplus-transistor circuit, leading him to retain adjustable pots for expressive texture control rather than fixing component values.

10:10

Frankenstein (guitar)

Eddie Van Halen

Frankenstein is a custom guitar built by Eddie Van Halen to combine Gibson’s PAF humbucker tone with Fender Stratocaster playability and tremolo. It uses one potted PAF in the bridge, mounted offset for string spacing, wired through a single 500k pot labelled 'TONE' and an output jack. No tone controls. No working selector. Middle and neck positions hold non-functional parts. It delivers aggressive, feedback-resistant lead tone — nothing else.

9:25

Fender Harvard

Fender

The Fender Harvard is a vacuum tube guitar amplifier made by Fender from 1955 to 1963. It appeared only in a tweed-covered narrow-panel cabinet. It had no predecessor or direct descendant. It served as a mid-tier option between the Champ/Princeton and Deluxe models.

9:29

Epiphone Jack Casady Signature Bass

Epiphone

The Epiphone Jack Casady Signature Bass is a 4-string semi-hollow bass guitar co-developed by Jack Casady and Epiphone. It features a maple body, mahogany neck, and a custom low-impedance humbucking pickup connected to a transformer with a three-position impedance selector (50, 250, or 500 ohms). It was designed specifically to improve tonal definition in ensemble playing — a documented shortcoming of the 1970s-era Gibson Les Paul Signature bass. It belongs to Epiphone’s list of exclusive electric bass guitars. It offers no tone controls, no second pickup, and no active circuitry. Its tonal range is defined entirely by impedance selection: lower values yield clarity and balance; higher values yield output and bass weight.

9:00

Fender Vibrolux Reverb

Fender

The Fender Vibrolux Reverb is a 35-watt blackface/silverface tube amp built around smaller transformers and 10″ speakers. It breaks up earlier and more sweetly than larger 6L6 Fenders. Its tone is scooped, punchy and sparkling—but it sacrifices clean headroom and low-end weight. CBS-era revisions increased clean headroom, but the core character remains defined by responsiveness over restraint.

8:40

Mutable Instruments Clouds

Mutable Instruments

Clouds is a granular audio processor for Eurorack that transforms live input into dense, overlapping grains. It records continuously into a short, variable buffer (up to 8 seconds), allows freezing that buffer to isolate a sonic space, and provides hands-on control over grain position, size, pitch, density, timing distribution, and envelope shape. A diffuser blurs transients using all-pass filters. It supports 40–60 concurrent grains and operates in stereo with extensive CV control, dry/wet blending, feedback, and reverb-like effects during freeze mode. It does not store or recall samples, nor does it support offline processing or waveform editing.

8:54

Electro-Harmonix Memory Man

Electro-Harmonix

The Electro-Harmonix Deluxe Memory Man is an analog delay pedal introduced in 2008, offering up to 550ms of delay, selectable chorus or vibrato modulation, true bypass switching, and mono audio I/O.

9:48

Make Noise René

Make Noise

René is a 34hp Eurorack module that functions as a three-channel, three-dimensional Cartesian sequencer, enabling real-time, performative programming and delivering maximal musical variation from minimal analog input; it stores up to 64 complete STATEs and features simultaneous Snake and Cartesian patterns, visual feedback via illuminated knobs and touch buttons, and Select Bus integration with TEMPI.

8:15

Vox AC30

Vox

The Vox AC30 is a valve-powered guitar amplifier introduced in 1959 to provide higher wattage and greater volume than the AC15. Its class AB operation, cathode-biased EL84 push-pull output stage, and Celestion Blue speaker pairing produce a jangly, mid-forward, high-clarity tone with limited low-end at low volumes but strong headroom and smooth overdrive. It is not synthesizer-based and does not employ digital or solid-state synthesis methods.

7:51

Buchla 100

Buchla · 1962

The Buchla Electronic Musical Instruments (1965) were modular, voltage-controlled systems designed for creating novel sounds—not imitating existing ones—using touch/pressure interfaces instead of keyboards, with synthesis based on FM, AM, and dynamic waveshaping.

9:38

Epiphone Casino

Epiphone

A true hollow-body electric guitar built for resonance, not resistance. Lightweight. Loud unplugged. Feedback-prone. P-90-driven. 16th-fret neck joint. Used by The Beatles and generations of players who value immediacy over isolation.

10:48

Yamaha CP-70

Yamaha

The CP-70 is a mechanically faithful grand piano stripped of its soundboard and fitted with piezo pickups for touring. It delivers unmatched keybed realism and feedback resistance—but at the cost of acoustic presence, convenience, and tonal flexibility.

10:20

Fender Deluxe Reverb

Fender

The Fender Deluxe Reverb is a 22-watt tube combo amplifier introduced in 1963, featuring spring reverb, tremolo, and a fixed 12-inch speaker configuration. It uses 6V6GT power tubes operated beyond specification, four 12AX7s, two 12AT7s, and a 5AR4 rectifier. Most commonly fitted with a Jensen C-12Q speaker, it has appeared with Oxford, Marlboro, Utah, and Eminence alternatives. Its circuit remained largely unchanged across black-panel (1963), silver-panel (1968), and black-panel reintroduction (1980) eras.

8:17

MXR Dyna Comp

MXR

The MXR Dyna Comp is a guitar compressor pedal introduced in the 1970s. It has two controls: Sensitivity and Output. It produces a non-tone-neutral, colour-rich compression effect. It became a Nashville standard. It smooths out volume differences between notes, especially in chicken picking. It was one of the six original pedals in the MXR Series 2000 line.

10:26

Gibson ES-125

Gibson

The Gibson ES-125 is a purpose-built, no-compromise entry into hollow-body electric guitar playing. It gives one voice, one circuit, and one physical response—nothing more, nothing less.

10:12

Gibson ES-175

Gibson · 1949

The ES-175 is a purpose-built hollowbody jazz guitar: functional, focused, and frozen in time.

8:28

Gibson ES-295

Gibson

The ES-295 is a hollow body guitar introduced in May 1952. It shares dimensions with the ES-175. It was conceived as a full-sized hollowbody archtop intended to complement the solidbody Les Paul. Its original price was $295. Les Paul claimed involvement in its creation. The first ES-295s came outfitted with one pickup. By 1953 the guitar was shipping with two pickups. It was discontinued in 1959 and reissued multiple times. Scotty Moore used it.

8:50

Gibson ES-330

Gibson

The ES-330 is a thinline hollow-body electric guitar introduced in 1959. It uses P-90 pickups and has no center block. It is prone to feedback. It was discontinued in 1972.

9:56

Gibson ES-335

Gibson · 1958

The ES-335 is a semi-hollow body semi-acoustic guitar introduced in 1958 as a compromise between hollow-body warmth and solid-body feedback resistance, featuring a solid maple center block with hollow upper bouts and f-holes. It achieved commercial success and continuous production due to its tonal flexibility across blues, jazz, and rock.

9:34

Fender Jazz Bass

Fender

The Jazz Bass is a purpose-built alternative to the Precision Bass—brighter, faster, less fundamental, less quiet. It does not replace the P-Bass. It displaces it.

8:51

Marshall JTM45

Marshall

The Marshall JTM45 is Marshall's first guitar amplifier, prototyped in 1962 and produced from 1963. It was developed as a British alternative to Fender amplifiers, using a modified Fender Bassman circuit with a 12AX7 preamp valve, Celestion speakers in a closed cabinet, and a modified negative feedback circuit that altered harmonic content. Its name reflects Jim and Terry Marshall and its 45-watt RMS rating.

9:30

Klon Centaur

Klon · 1994

The Klon Centaur is an overdrive pedal introduced in 1994. It was designed to emulate high-volume amplifier distortion while preserving tone. Its circuit uses a JFET-based TL072 op amp and hard-clipping 1N34A diodes. After internal voltage doubling, the signal splits into three paths. It adds slight midrange emphasis. It was built as a standalone pedal in a custom-cast enclosure.

9:41

Gibson L-5

Gibson

The Gibson L-5 is a hollow body guitar introduced in 1923. It was one of the first guitars with F-holes. Its construction uses carving, bracing, and tap-tuning like a cello. It amplifies string vibration through carved and tuned woods using F-holes as projection points. The lower bout width increased from 16" to 17" in 1934 and has remained 17" since. It was originally offered as an acoustic instrument. In 1951, the 17" L-5 was outfitted with a pair of P-90 pickups. Starting in 1958, the P-90 pickups were replaced by humbuckers.

9:12

Gibson ES-355

Gibson · 1958

The ES-355 is Gibson’s most complex semi-hollow — a stereo, varitone-equipped evolution of the ES-335. It launched in mono in 1958, added stereo in 1959, and was discontinued in 1984 after failing to meet commercial expectations. Many players disabled the varitone. Gibson revived it in 2018.

8:24

Gibson Les Paul Junior

Gibson

The Gibson Les Paul Junior is a stripped-down, single-pickup electric guitar introduced in 1954 as Gibson’s affordable entry into the solid-body market. It features one P-90 'dog-ear' pickup at the bridge, one volume and one tone control, no binding, and no carved top. A double-cutaway version launched in 1958 nearly doubled sales. The original run ended in 1963. Its raw, overdrivable tone made it a favourite among rock and blues players in the 1960s and 1970s.

9:44

Fender Princeton Reverb

Fender

The Fender Princeton Reverb is a 12-watt tube combo that integrates reverb and vibrato into a single, responsive, non-master-volume design. Introduced in 1964, revised through 1977, discontinued in 1981, and reissued in 2008, it delivers a specific kind of saturated, modulated tone at low-to-moderate volumes—and nothing else.

8:12

Epiphone Sheraton

Epiphone

The Epiphone Sheraton is a thinline semi-hollow body electric guitar introduced in 1958 under Gibson’s ownership but exclusively manufactured by Epiphone. It was reworked from Epiphone’s Century archtop and shares its body design with Gibson’s ES-series. Key spec changes include the 1958 twin-pickup configuration, 1961 switch to mini-humbuckers, and 1970 shift to full-sized humbuckers and Japanese production.

11:00

Dallas Rangemaster Treble Booster

Dallas Rangemaster

The Dallas Rangemaster Treble Booster is a 1965 desktop effects unit made for guitarists in the 1960s. Its function was two-fold: to increase the signal strength of the guitar going into the amplifier, and to increase tones at the high end of the spectrum (a treble booster). The need for a treble booster arose in the mid-1960s, as British tube amplifiers such as the Vox AC30 or Marshall JTM45 tended to produce a slightly dark, muddy sound when overdriven, particularly when used with humbucking pickups. A pre-amplifier that also boosted treble proved a solution. Additionally, the vintage components in the Rangemaster circuitry could add characteristic distortion and overtones to color the guitar sound, much in the way of the more modern overdrive pedals. The Rangemaster Treble Booster was first made in the 1965 by London company Dallas Musical Ltd., incorporated in 1959. The unit is simple and consists of a grey folded metal casing with an on/off switch, a potentiometer controlling the boost setting, and in- and output jacks. It was designed to sit on top of an amplifier rather than on the floor, where most effects units live.