This is a patched version of "Midi Sheet Music".
The original app:
http://play.google.com/store/apps/details?id=com.midisheetmusic
Kudos to Madhav Vaidyanathan for publishing his app as open source.
This patched version supports four additional features:
1) Volume control per track in 10% steps.
2) Left/Right control per track in 5 steps.
3) Metronom ticks
4) associate mime type "audio/midi"
The code changes are available as patch for the Feature Requests 14 "Individual voice volumes and L-R playback", 16 "Add Metronome" and 18 "associate with MID-files ":
http://sourceforge.net/p/midisheetmusic/feature-requests/16/
http://sourceforge.net/p/midisheetmusic/feature-requests/14/
https://sourceforge.net/p/midisheetmusic/feature-requests/18/
This is NOT a fork of the original project.
As soon as the features are supported in the regular version, this project will be unpublished.
p3: Feature of issue #18 "associate with MID-files" was added.
The Mime-Type "audio/midi" is associated with "Midi Sheet Music", so attachments of eMails can be opened directly.