Simple Transposer is a musical utility allowing quick transposition between C, Bb & Eb instruments. Designed for immediate response in any musical situation: performing, learning, teaching, etc. A simple study tool to help educate musicians of all ages. Easily transpose between all the basic instruments such as saxophones, clarinets, guitars, trumpets and pianos. Use the top-left control to choose which instrument type to transpose from and use the top-right control to choose which instrument type to transpose to. Tap Letters to change from Sharps to Flats.