iOS Musician Apps (64) Supported Technologies is Audio Unit (AU), Type is Tool

A simple free music player that allows you to play music files while playing effectors that support Audio Units Extension (AUv3 plugin) format.

Plotony is a harmonograph simulator that transforms MIDI input into beautiful, animated drawings.

Dadachron is a standalone 12 track MIDI Step Sequencer to control all 12 outputs of your dada machines automat controller. Simply plug in your iPad to the automat via USB MIDI and start triggering notes, it works plug and play.

Poly 2 is a generative sequencer that creates evolving patterns and melodies based on the power of polyrhythms.

This application is simply a container for the Audio Unit and also serves as the documentation for the AU. PhaseDelayArray is a bit of a strange effect. O.K, so, what is it? PhaseDelayArray has three effect units chained together in an interesting configuration, and one of these units is just a little bit twisted.

Song Memo is the easiest way to take notes of your song ideas. The chord keyboard of Song Memo allows you to write chord progressions more quickly. Chords are automatically detected while you are taking a note.

Wavescope is an Audio Unit Plugin effect that visualizes your audio in real-time.

Does the World need another MIDI Monitor? We thought so, and it's free, so you have nothing to lose to add this handy little utility to your app collection.

MIDISpy - MIDI Monitor. A handy little utility for monitoring MIDI connectivity.

Physicles is a container of physics-based Audio Unit MIDI plugins. These AU MIDI plugins generate MIDI messages through the use of an underlying physics engine, which models the physical interactions between various entities.

StreamByter is a plugin for creating custom MIDI effects.

Mozaic runs inside your favorite AU MIDI host, and gives you practical building blocks such as LFOs, pre-fab GUI layouts, musical scales, AUv3 support (with AU Parameters, transport events, tempo syncing, etc.), random generators and a super-simple yet powerful script language.

So what is a midi echo? It is similar to the audio echo effect where copies of the original audio are repeated at regular time intervals but with some form of change (e.g. quieter). But unlike audio, midi is digital in nature (low resolution 8 bit mostly) and focused around the midi note on & off message used to control synths etc.

7Xwave - a 7 track sample sequencer with synthesizer & animatable modulation features.