iOS Musician Apps (63) Supported Technologies is Audiobus, Type is Tool

It's an all-in-one app, with a state-of-the-art tuner, an advanced metronome, dedicated orchestral strings and guitar tuning page, a piano keyboard, sound analysis pages, and audio/visual recording capabilities.

RhythmBud is a MIDI effect application that would transform incoming MIDI messages into the rhythmic pattern you will create on its editor.

Get instant musical ideas at a push of a button with Fortamento - a simple and effective music idea creator, capable of generating 4 bars of chord progression and melody, with the option to edit the idea and save the result.

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

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.

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

Audiobus Remote is a companion app for Audiobus 2 which can either run on the same device or on a separate iPhone or iPad connected by Bluetooth.

A sound file manager with powerful import and export abilities.

X Drummer is the drum production tool for guitarists, songwriters and mobile musicians.

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

midiFILTr-PG is a Probability Gate MIDI effect designed for Audiobus 3 but also usable with CoreMIDI.

nsTuner is a chromatic tuner that helps you tune your instruments.

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

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

This keyboard for Audiobus 3 allows you to perform music with multiple synth apps at the same time.

If you play your synth apps with an external keyboard, Midiflow Splitter is an essential tool for you. This MIDI effect app for Audiobus 3 lets you create split and layer configurations in an easy but powerful way.

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

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.