iOS Musician Apps (162) Supported Technologies is Audiobus, Instrument Sounds is Keyboards

An app that can also be used stand-alone with a cool built-in FM synth and sound space surface controller.

This intuitive virtual instrument features a super responsive  fingerboard that plays and sounds like the traditional instrument in the most common two-row tunings of B/C, C#/D, and D/G, as well as an extended B/C+ layout with four chromatic buttons on a partial third row.

Uber Synth is a polyphonic multi-timbral FM synthesizer that runs on any iOS device.

Arpeggist is a MIDI Note arpeggiator with a very flexible step matrix editor for programming and a unique “rolling dice” random arpeggio generator.

LH Grain is a two channels, which are all independent, synthesizer for performance.

An app which is a faithful digital re-creation of their circa 1980 analog cult-classic, The MINI-SYNTHESIZER.

Mimicking the layout of Hohner's iconic piano accordions, this intuitive virtual accordion is easy to play and sounds exactly like the real instrument.

Arctic Pro Synthesizer / Vocoder is a modern subtractive synthesizer.

This is a synthesizer designed specifically for making Dubstep, DNB and EDM lead bass/synth.

The concert quality piano app.

Combines the synthesis power of Addictive Synth with an easy to use 4 track loop phrase recorder.

Colossus Piano sets a new standard in terms of realism, detail and overall quality of piano sounds on your iPad, iPhone and iPod touch.

The concert quality piano app.

Turn your iPad into the electric piano instrument with a collection of authentic electric pianos and vintage keyboards along with built-in recording.

Designed to deliver authentic dub sounds and effects, iTALIZER at it's heart is a monophonic synthesizer paired with an authentic tape echo emulation.

iVoxel is not only a vocoder - the unique concept of iVoxel turns this vocoder into a singing machine.

Play the vibe. Hear the magic. Syntronik is IK’s cutting-edge synthesizer that features the sound of the most iconic machines to ever grace the planet.

Each of the 2 oscillators offers a selection of 5 waveforms: sawtooth and pulse waves are here, along with noise, triple saw and triple FM waves. There's also an additional sub-oscillator strapped into the master section for added oomph.

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

RD4 - Groovebox is a music making app with virtual analog synthesizers, drum machines and effects.