Conceived by Professional Drummer and Educator Sergio Bellotti (Faculty at Berklee College of Music) this free APP has a great share of free content to range from inspirational videos of his performances with top renown artists as well as instructional video lessons. Other key features include a professional metronome and the unique "groove box" which is easy to use and will be a fun yet powerful learning tool for drummers of all ages,levels and style. You can also preview and buy other products offered by the artist.