Show HN: Teach your kids perfect pitch
Summary
Show HN post presents BSharp, a perfect pitch trainer app for kids built around Eguchi's chord identification method. The project combines a Play Store app with an open-source reference implementation inspired by CIM Trainer, offering a gamified approach to developing absolute pitch through colored chords and adaptive practice. The repo includes developer guidance for building on Node.js and Android, attributes the approach to open-source origins, and points to tutorials and licenses.