Pulse Master slows down music without affecting pitch, so musicians can more easily understand words, transcribe songs, or transpose a musical key. Independent control of music speed and pitch is done in real time by playing music from a CD or a MP3, WAV, WMA, or Ogg Vorbis file.

Pulse Master also can be used as a flexible dictation machine, a choreographer's or dancer's music-speed-adjusting tool, a music teacher's tool, a singer's tool for changing the key to match a vocal range, or a tool for understanding words in foreign languages.