My parents live in a retirement village and my dad is in a band there called the Rheumatics. :0) One of his fellow guitarists only plays 5 chords and refuses to learn any more so dad has to transpose their music into a key she can play! My dad being the techy sort decided to write his own bit of software to do this. “But wait”, I hear you say. “There are already plenty of apps out there for your phone which do this”. True, but he wanted one on his laptop as the phone screen is too small. Why am I telling you this? because I needed and introduction and it is the inspiration for this days app icon challenge – a music transposition app icon