Pocket Composer is an assistant for music students, professional composers, and everyone who study music theory. It has a complete dictionary with all existing chords and scales in western music for piano and stringed instruments This now brings full support for every stringed instrument with a fretboard. Any tuning can be applied to an instrument 3 to 10 strings Search for stringed chords from easy to hardest to play with a reference bar that will help you notice what fingering position are easier to play This is a free app that contains also a compact chord progression builder to help you create progressions and songs in every places where you cannot take the instrument. Now we have added a new harmony tool to help apply dominant and subdominant harmony function over all existing chords It has a chord wheel that extends circle of fifths functionality and allows you harmonizing all scales and even apply harmony functions such as secondary dominant, secondary leading tones, secondary subdominant, etc... so you can compose songs and learn to play chords and scales. You can easily find out the name of an scale and the symbol of a chord by playing the instrument and even learn many other different chord symbols. Main features: . All existing piano and stringed instrument chords in western music, with it's inversion and different voicings. . All existing scales in western music and many of it's different names. . Extended chord Wheel and Circle of Fifths. . Compact chord progression builder. . Tool for applying harmony functions to any chord. . List of all available chords in scales grouped by number of notes . Many different key notations: English, Spanish, Italian, German, Japanese, Russian, Chinese, numerical, etc. . Chord-Scale Theory to learn how to apply scales over single chords . Chord voicings and inversions . Scales on the staff with many different clef.