iOS Musician Apps (33) Instrument Sounds is All-in-one

The Streetlytron '63 Edition : genuine Mellotronics for your iPhone and iPad.

The app gives you the basis to try out Grid Synth, Sampler & Rhythm. The Guide explains the basic functions to create soundscapes & melodies.

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

A highly tweakable stereo delay AudioUnit effect, suitable for everything from clean digital delays to filthy dub echoes, flangers and broken cassette tapes.

Steps by Reactable is a small yet powerful MIDI sequencer that allows you to create complex rhythmic patterns in a surprising new way.

Even if you've only played air guitar, ThumbJam lets you sound like a pro.  Pick an instrument and jam - with all the scales to choose from you'll never hit a wrong note.

Automatic song generation, flexible song editing.

Chordbot is a songwriting tool / electronic backup band that lets you create and play complex chord progressions in different arrangements easily. Just add some chords, select a comping style and hit play.

Whether you're 2 or 92, NodeBeat will make you sound like a pro. Create your own music in a matter of minutes or listen to NodeBeat generate its own.

Gestrument Pro takes everything we loved about Gestrument and improves on its original functionality while introducing a host of new features such as multi-touch, recordable automations, advanced scale editing and our unique system of highly tweakable modular generators that define the pitches and rhythms.

This is the first time Jordan Rudess, best known as the keyboardist for Dream Theater, has released a complete set of his exclusive sounds to the public.

Caustic 3 is a music creation tool inspired by rack-mount synthesizer/sampler rigs.