on the purchase of your JUPITER Bright or Mellow Trumpet set. Fill out the form and register your instrument. You will find the serial number on the second valve casing of your trumpet. After successful registration, we will send out your personal QR code to unlock the contents of the first volume of the Trumpet Fox app by Stefan Dünser.
We at JUPITER wish you lots of fun with your new instrument and practising with the Trumpet Fox app!