piano.sh

#!/bin/sh

# Replace with your controller model
KB_MODEL="BK492"

# check if jack and a2jmidid are active
if jack_control status && (a2j_control --status | grep "enabled"); then
    # kill any previous instances of fluidsynth
    for id in $(pidof fluidsynth); do 
        kill $id 
    done

    MIDI_KB=$(jack_lsp | grep -P "$KB_MODEL \[\d\d\] \(capture\)") ||
        MIDI_KB=$(jack_lsp | grep -P "Midi Through \[\d\d\] \(capture\)")

    if [ -z "$MIDI_KB" ]
    then
        dunstify "Is your midi keyboard on?" "$KB_MODEL\n"
        exit
    fi

    termite --name piano -e "fluidsynth -a jack -j \
        $HOME/soundfonts/KawaiUprightPiano-20180102.sf2" &

    sleep 2

    FLUID=$(jack_lsp | grep -P "FLUID Synth \(\d*\) \[\d*\] \(playback\)")
    echo $MIDI_KB $FLUID
    jack_connect "$MIDI_KB" "$FLUID" &&
        dunstify "Keyboard connected succesfully" "$KB_MODEL"
else
    dunstify "jack and a2j not started"
fi