soundstretch 1.9.2-2+deb9u1build0.16.04.1 (s390x binary) in ubuntu xenial

 This program can strech and pitch-shift .wav-files independently.
 This is especially useful for musicians, who want to listen to a song
 played slowly, without having the pitch altered.
 .
 This program uses the SoundTouch shared library for the actual work.