while true ; do
printf "BPM: "
read BPM
echo Takt: `echo "scale = 2; $BPM / 240" | bc`Hz, `echo "scale = 2; 4 * 60000 / $BPM " | bc`ms
echo Halbe: `echo "scale = 2; $BPM / 120" | bc`Hz, `echo "scale = 2; 4 * 30000 / $BPM " | bc`ms
echo Viertel: `echo "scale = 2; $BPM / 60" | bc`Hz, `echo "scale = 2; 4 * 15000 / $BPM " | bc`ms
echo Achtel: `echo "scale = 2; $BPM / 30" | bc`Hz, `echo "scale = 2; 4 * 7500 / $BPM " | bc`ms
echo Drei Achtel: `echo "scale = 2; $BPM / 90" | bc`Hz, `echo "scale = 2; 4 * 22500 / $BPM " | bc`ms
echo Sechzehntel: `echo "scale = 2; $BPM / 15" | bc`Hz, `echo "scale = 2; 4 * 3750 / $BPM " | bc`ms
echo Drei Sechzehntel: `echo "scale = 2; $BPM / 45" | bc`Hz, `echo "scale = 2; 4 * 11250 / $BPM " | bc`ms
done