Usage of cutmp3 on Ubuntu Linux
# http://manpages.ubuntu.com/manpages/trusty/man1/cutmp3.1.html
cutmp3 -i source_file.mp3 -a 0:37 -b 1:25
cutmp3 -i file.mp3 -a 0:37 -b 1:25 -o file_ -q
# cut from the start
cutmp3 -i file.mp3 -a 0:00 -b 1:25 -o file_ -q
# cut to the end
cutmp3 -i file.mp3 -a 0:37 -b 999:00 -o file_ -q