iOS Musician Apps (145) Supported Technologies is Audiobus, Instrument Sounds is Keyboards

Mimicking the layout of Hohner's iconic chromatic button accordions (CBA), both B-System (Bayan) and C-System, this intuitive virtual accordion is easy to play and sounds exactly like the real instrument.

Groovebox is a free music studio app packed with synths and drum machines.

GrainProc is a real-time granular synthesizer with which you can create new sounds and musical textures by affecting your voice, your instrument, or any input.

Geo Synthesizer is a musical instrument and MIDI controller.

Galileo Organ 2 is a tonewheel and transistor organ app.

FM4 is a four operator FM synthesizer for iPad.

Flynth is a synthesizer by Fingerlab, designed for musicality and easy use.

Make music in seconds. Share, remix and collaborate with music makers all over the world.

Esoteric Synth is a unusual generator of synthetic sound events. The synthesis is based on 5 oscillators which are intersected through an multiple amplitude modulation and multiple frequency modulation making  an high sound variability. This App is suitable to generate complex sound textures, glitches, noises, sound clouds, sound drones, point sounds and more.

Englitina is an authentic-sounding English Treble Concertina for the iPad.

Electric Vintage is a virtual instrument based on a reproduction of a famous vintage electric piano (1976).

With EGSY01 you can create sounds, from modern ones to vintage analog ones, working with arpeggiator, step sequencer and FM, addictive and subtractive synthesis.

Elsa is a retro style sampling keyboard with tempo based looping.

DXi is a FM synthesizer application inspired by 80's most popular FM synthesizer.

This app reproduces the functionality of Casio’s best-selling CZ-series models, such as the CZ-101 (first released in 1984), and also includes new functions.

Specific sound morphing capabilities enables you to easily create complex evolving sound scapes, vocal phrases or stunning rhythms simply by choosing up to four sound sources from a predefined set.

Cube Synth is a groundbreaking new software instrument giving you the power and flexibility of additive synthesis together with easy editing and morphing capabilities.

Crystal Synth XT is a full featured semi-modular synthesizer, ideally suited to creating lush evolving soundscapes.

Combo Organ Model V is a musical keyboard app for iPad/iPhone/iPod touch that simulates the electric transistor organ, is called a Combo Organ. It was a big success in the 1960s.