iOS Musician Apps (71) Supported Technologies is Audiobus, Type is Tool

Velocity Filter is the way to make all your synthesizer patches respond to MIDI velocity in a natural and musical way.

Xequence is a MIDI sequencer, editor, arranger & controller for iPhone & iPad.

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.

StepBud is a MIDI Sequencer with Audio Unit AUv3 plugin, Audiobus and Ableton Link.

Piano Roll is a sequencer for iOS, and the first in our Atom series of modular sequencer plugins. Record, replay, loop and manipulate MIDI notes anywhere.

With ChordPadX, chord are at your fingertips!  Trigger chords and notes intuitively, with a human touch.

Mixxmaster is the quickest and easiest way to create simple MIDI sequences on your iPhone or iPad.

PolyHarp is a virtual musical instrument and a thought experiment. It's a testbed for harmonic theory as well as a great multi touch simulator of the good old "idiot zither" you have in the attic.

"QuantiChord" is a MIDI effect that generates chords from incoming notes and quantizes the results to a pre-defined scale. It can be used as a standalone application or as an Audio Unit MIDI effect plug-in.

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.

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.

ScaleBud is a music theory tool for composers, artists and learners. It has more than 40 most popular scales and counting.

Live stream your beats from compatible Audiobus apps or musical instruments connected to the audio port of your iPhone or iPad. Create original music and perform live to your audience through a simple web URL. Live music performances can happen right now from your iOS device.

"StepPolyArp Unit" is a real-time polyphonic and polyrhythmic MIDI step arpeggiator and step sequencer. It can be used as a standalone application or an Audio Unit MIDI effect plug-in.

ArpBud has two main sequencers: the interval sequencer and the pitch sequencer, with unlimited number of steps for both.

apeMatrix is a unique AU/IAA routing tool that gives you total control over what you want to do and how you want to do it.

Program Changer is a super simple tool to send and receive MIDI Program Changes.

Create ideas for music, melodies, MIDI & lyrics... or one-press make beautiful ambient generative music albums for sleep & relaxation.

Bark Filter is a Critical Band Analyser/Filter/Compressor.

Like everyone, you have a number of amp and effect Apps. Amp Rack lets you line them up in one large display and switch between them with a single tap.