iOS Musician Apps (293) Supported Technologies is Inter-App Audio (IAA), Type is Instrument

Play with the sound of a full cathedral organ, created by award-winning sound designer Kurt Ader.

Load any MIDI file and sound library (a small General MIDI sound font is included). Play midi files with additional features.

Brazilian Drum Machine is a complete brazilian rhythm section in your device.

SynthQ is a subtractive synthesizer with a customizable interface.

Attack Drums is a synthesizer designed mainly for drum sounds, but the powerful sound engine can also be used for everything else - including vocals.

The Beat Station is a rhythm machine for practicing guitar, bass, keyboard, or any type of instrument, and also brings to production and live performance the ease of not requiring live drums and a drummer.

Berimbau ~ Capoeira - berimbau instrument simulator app.

Backpack Studio allows you to easily create professional sounding,  studio quality recordings -  from anywhere in the world.

iStatic generates continuous visual and aural noise. Use it to mask distracting background sounds, when you're at work, reading on the train, trying to sleep, or if you just loathe silence.

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.

LoAdKer is a novel rhythm event generator that is based on fractal sequences.

Ribbons is an extraordinarily fun and expressive musical instrument for iPad.

DRUMLAB brings a new approach to the Drum Machine by allowing you to play with both Samples & Synthesis drum sounds.

DM2 is a synthesis-based drum machine with a dedicated graphic editor, for the creation and manipulation of sound.

SpringSound is a physical-modeling audio synthesizer that produces sounds by simulating interactions and vibrations of a set of activators and masses connected to springs.

Vox Unit is a vocoder. You speak in the microphone, you play on the keyboard, and choir and vocal effects are produced.

Dazibao is a polyphonic synthesizer programmed by an innovative interface : you create several tones, then you arrange them on several time lines.

Arctic Pro Synthesizer / Vocoder is a modern subtractive synthesizer.

Built for Live performance and hands free use, Quantiloop recreates the simplicity of a hardware loop pedal in an iOS app.

AutoPad is an app for musicians that allows you to play ambient pad loops.