#!/bin/sh
if [ $# -eq 0 ]; then
    echo "usage: play_abc file" >&2
    exit 1
fi
trap '' 1
exec >/dev/null 2>&1
(abc2midi "$1" -o /tmp/abctmp.mid
mmwrapper -k
while tim -id /tmp/abctmp.mid; do :; done) &
.