Software:MIDI Voyager

MIDI Voyager is a free MIDI Player and Visualiser for Google Play and iOS; It used to be similar to Piano From Above, MIDITrail, Synthesia.
The note display may be laggy at times.

The app allows some customised features:

* Ability to transpose key on MIDI files.
* Ability to change speed to a different BPM or speed percentage.
* Soundfonts may be imported via mobile device files
* Can detect any set key signature
* Note colour options (limited)

## Ratings & App information

MIDI Voyager is made by Adrian Kossow, and has been released on Android and iOS.

### Google Play

As of October 2020, the app rating is 4.3/5 for the free version and 4.5/5 for the paid version. ($4.49/€4.69)

The added "pro" features are the following:

* Load multiple soundfonts at once
* MIDI OUT: connect a hardware synth or midi interface box
* Chord analysis
* Additional lyrics view with words arranged in measures, including chord symbols to play along the song
* Export MIDI files to wav audio
* Export modified MIDI files to new MIDI file (including changed pitch, instruments) or export just a range (loop)

The app's size is 7.7 MB (megabytes) for both paid and free versions.

The app requires Android OS 4.0 or newer to be installed.

### iTunes

As of October 2020, the app rating is 4.6/5, and there is no free version ($2.99/€3.49)

All features are the following:

* Use any SF2/SFZ soundfont for playback (one SF2 is already included), may also be compressed with flac, wavpack, opus
* Add MIDI files to the "Documents" folder via iTunes or choose external files via Document Picker
* Support for zipped (\*.zip) midi file archives: the archive will be extracted during import
* Support for zipped (\*.zip) soundfont files: recommended when importing sfz soundfonts
* Karaoke: \*.kar and \*. mid files, support for many charsets (Cyrillic, Greek, Arabian, ...)
* Karaoke special: Lyrics view with words arranged in measures, including chord symbols to play along the song
* MIDI OUT: connect a hardware synth or midi interface box
* MIDI IN: connect a master keyboard via Usb cable and play the soundfonts sounds with low latency
* Chord analysis
* Metronome
* Export MIDI files to audio (.wav)
* Export MIDI files to new MIDI files, including changed pitch, instruments,.... or export just a range (loop)
* Gapless and beat accurate looping due to quantisation feature. Loops are also shiftable while playing
* Create markers to quickly navigate to specific file positions - Give a name for each marker, e.g. "solo", "reprise"...or to insert a program change.
* Concert pitch: tune A above middle C (between 410 Hz and 480 Hz)
* Auto detect voice melody track with the option to mute it automatically
* Tracks control: Mute or solo specific tracks/instruments or assign other instruments
* Support for BLACK MIDI / impossible music (files with millions of notes)
* Change the tempo during playback while maintaining relative tempo changes
* Transpose the MIDI file during playback
* Various midi notes visualisations: pitch range, by track, by midi channel, notes out of key
* Piano keys: scrollable and zoomable, with customizable note names culture

The app's size is 53 MB (megabytes) in the current version.

The app requires iOS 9.0 or newer to be installed.

## Advantages/Disadvantages

### Advantages

* Can pass crash parts very fast.
* Plays the audio of MIDIs with little lag.
* Displays karaoke lyrics (if any).
* Multiple-track playing.
* MIDI note visuals.
* Bug fixes for known errors can usually be fixed within 3–4 days.

### Disadvantages

* Large MIDIs can take some time to load.
* Has lower performance than other MIDI Players.
* Makes unheard notes disappear, but the sound can still be heard.
* Not free on iOS