Metronome Pro funktioniert nicht

This metronome has been made by professional musicians: its extremely accurate system will perfectly help you to get the right tempo, whatever the instrument you use.  Aus diesem Grund wurde Metronome Pro entwickelt, damit du nicht aus dem Takt kommst und mit perfekter Präzision spielst!  Rhythm games will help you improve your rhythm: learn to accurately play a sequence at a specific BPM and train your capacity of retrieving a rhythm from your memory.  Metronome Pro works great for daily practice, live performances with your band or if you do records in a studio.  Don’t wait anymore and come test it! - Can be used for any instruments: piano, drums, guitar etc...  Want to customize your metronome song?  Halte immer das Tempo und den Rhythmus, egal wo du bist.  Intuitive to use with a beautiful interface, it offers many ways to personalize your experience.  Finally, Time Signature and Subdvisions can also be changed to fit your specific needs.  It’s a real tool, convenient for beginners and professionals alike.  Metronome is more than just an application.  The possibilities are almost infinite: The BPM beats per minute can be set on a wheel, from 30 to 250 beats.  And if you prefer to have a visible cue of the beat, you can use the flash of your phone as a marker!  No problem, you can choose from a wide selection of songs.  Als Musiker kennst du die Bedeutung des Tempos.  There is something for every band and for every kind of instruments.