Musictheory
Fretter v.1.8.0.0
Fretter is a advanced chordfinder for guitar, banjo and ukulele. It generates diagrams for all possible chord variations and also has a reverse lookup function. It doesn't use a database, but knows it's musictheory,
Tuning Tables LucyTuning v.1.0
49 microtuning tables for use with Song Tuning capability of Logic Pro 7 and later.