Download Old Troff - Training with music chrome extension. Training with music - use https://troff.app instead. A Music player that let you loop, adjust the tempo and create markers! and install in your Google chrome browser. This is Direct Old Troff - Training with music Crx download for Chrome it is also called Old Troff - Training with music offline CRX for chrome Download. This Old Troff - Training with music is used to Training with music - use https://troff.app instead. A Music player that let you loop, adjust the tempo and create markers!