Karaoke Tracks vs Google Flow Music (formerly Riffusion)

Karaoke Tracks at x-minus.pro is a community karaoke library where you search, stream, and download backing tracks across genres and languages. The catalog lists more than 700,000 tracks, with collections for love songs, movie soundtracks, holiday themes, and dozens of other categories. Each track opens in a web player with on-page pitch and tempo controls.

Where commercial karaoke apps license a fixed catalog, Karaoke Tracks relies on community uploads, so you get regional songs, fan-made arrangements, and obscure titles that rarely appear on Smule or Singa. Track quality and metadata vary by uploader, which is the trade-off for breadth across languages and themes.

Registered users can upload their own backing tracks, build playlists, and browse recent uploads or the TOP 50 chart. The site also hosts separate browser tools for AI vocal removal with stem splitting options and a transpose page for changing pitch or tempo on any uploaded audio file.

Google Flow Music lets you create full-length songs, remix tracks, and publish music through a conversational studio built on Google's Lyria 3.5 model. riffusion.com now redirects to flowmusic.app, where you chat with Producer like you are in a session, iterate on vocals and arrangement, and export finished tracks.

Unlike one-shot music generators that spit out a clip and stop, Flow Music focuses on iterative editing. Replace and Extend let you swap specific sections or continue a song past its endpoint without regenerating the whole track. You can also direct Veo-powered music videos, split stems, apply audio effects, and vibe-code custom instruments or mini apps inside Spaces.

The free tier includes daily top-up credits and two concurrent generations with no credit card required. Paid plans raise monthly credits, concurrent generation limits, and add member perks. Google acquired the Riffusion team in 2026 and folded the product into Google Labs alongside Lyria and Veo.