ALSA Sequencer Remote Control
AseqRC is just what the label says. Allows to remote control the ALSA sequencer, via HTTP from anywhere. This anywhere normally is just local network, from your mobile, so you can conect several MIDI devices.
On the first screenshot is the Mobile UI, where you can see as main headers the outputs, and the you select where this MIDI data go to.
On the second screenshot there is a basic MIDI event viewer where you can check if the data is flowing properly and what is going on, with a handy keyboard on top with poly aftertouch support. This keyboard is only for viewing the events there is no option to send events (yet).
It can be downlaoded at github: https://github.com/davidmoreno/aseqrc