Figure - Propellerhead creates world-class software products and services that inspire music makers and provide the foundation for a worldwide creative musical community.

Pitch Ability Test - Test your Pitch Ability. Measure your pitch take over and pitch retention abilities. Know where you stand on the road to Absolute Pitch. Especially, measure the criteria: Accurately sing a named note without a reference.

SoundGrail - SoundGrail Music App designed for pianists, guitarists, and DJs.

Listening Ear Trainer - Listening Ear Trainer has 2 methods to improve your pitch recognition skills. The Singing Funnel Method lets you sing notes with increasing precision. The Octave Anchor Pitches Method builds a repertoire of notes, which increases with each exercise.

keezy - A colorful soundboard. Play with music.

GNU Solfege - GNU Solfege is free music education software.