This is a simple app that is designed to help singers, soloists and choristers find the right note when they are practising. It is the modern day equivalent of pitch pipes. This app can produce tones in the tenor range. The lowest note is G3 and the highest A5. C4 is middle C. The tone produced can be chosen from either a piano or saxophone. In this new version the user can select # or b labels for the buttons depending on the key being sung in. A sequencer has been added. This will allows the user to play and save short extracts from a piece. I find this useful when I am trying to learn a piece containing awkward intervals.