Tonelib JAM - Create, edit, print and listen to tablature and guitar sheet music
iHandy Carpenter - An handy carpenter tool kit right on your device! There are 5 tools in this Carpenter tool kit:
Chordsheet Maker - Create chord sheets or lead sheets quick and easily from your iPad. Add rhythms, endings, segno, codas and all what's necessary for your musicians to know what's your music about. Transcription made easy!
Pocket Ruler AR - Pocket Ruler AR is a pocket ruler app that lets you measure objects and distances with your phone.
Aria Maestosa - Aria Maestosa is an open-source (GPL) midi tracker/editor.
iLevel – Protractor & Level - iLevel – Protractor & Level, now named Measure Angles – Level, is one of the most precise and easy-to-use clinometer and leveling apps that allows you to quickly and easily measure angles, slopes, and distances.