Penultimate Guitar is an alternate frontend for Ultimate Guitar that focuses on mobile usability and Spotify integration. All features are available on mobile*.
It is built with TypeScript, Next.js, and Tailwind and deployed on Vercel. It works in tandem with a Postgres instance on a DigitalOcean through Prisma. The source code takes a lot of inspiration from Alculator.
Features include:
- importing Spotify playlists, will find the highest rated chords for all songs in playlist
- chord tooltips
- transposing
- autoscrolling
- saving tabs to home
- organising saved tabs into folders
The source code is available here. The deployed version can be found here.
Chord tooltips are only possible through chords-db and react-chords, both by David Rubert.
* Except chord tooltip inversions, though its only because I haven't thought of a simple interface for it yet