This search experience is powered by Typesense which is a blazing-fast, open source typo-tolerant search-engine. It is an open source alternative to Algolia and an easier-to-use alternative to ElasticSearch.
The songs dataset is from MusicBrainz which is an open music encyclopedia that collects music metadata and makes it available to the public. Please contribute to it if you're able to!
The app was built using the Typesense Adapter for InstantSearch.js and is hosted on DigitalOcean's App Platform.
The search backend is powered by a geo-distributed 3-node Typesense cluster running on Typesense Cloud, with nodes in Oregon, Frankfurt and Mumbai.
Here is the source-code that shows you how to build your own search experience like this one: https://github.com/typesense/showcase-songs-search
