# Flow Music adds BPM control with its Lyria 3.5 upgrade By Steven Van · 2026-07-29 More expressive vocals and natural song structure arrive alongside a direct tempo parameter for syncing to video. [Flow Music]() now runs on **Lyria 3.5**, Google DeepMind's newest music generation model, and the upgrade targets the three things that most separate AI-generated music from something a human made: how the vocals sound, how the arrangement holds together, and how closely the output follows what you actually asked for. [Source post](https://x.com/i/status/2082496617664413721) ## More expressive vocals Lyria 3.5 targets more expressive, dynamic singing, the difference between a vocal line that sounds technically correct and one that carries actual performance, dynamics, phrasing, emotional lift on a chorus. That's historically been one of the harder problems in AI music generation, since a flat or robotic vocal is often the single biggest tell that a track was AI-made. ## Arrangements that flow, not just loop The model also brings richer arrangements, with tracks described as flowing naturally rather than sounding like a loop stitched into a longer runtime. That points at better structural coherence across a full song, verses, builds, and choruses that connect logically instead of a beat repeating with minor variation. ## New BPM control On the direction-following side, Lyria 3.5 adds a dedicated BPM control, letting creators lock in a specific tempo rather than describing it in words and hoping the model lands close. That's a meaningful practical upgrade for anyone syncing music to video, matching a track's tempo to an edit's pacing is far easier when BPM is a direct parameter instead of a fuzzy prompt instruction. ## Where this fits in Flow Music's roadmap The model upgrade follows [Spaces' recent expansion]() into a full vibe-coding environment for building custom instruments and music apps, generating, editing, and stemming songs all inside one tool. A stronger underlying model raises the ceiling on everything built on top of it, from quick song generation to the more involved Spaces workflows. ![Flow Music]() Flow Music Google's AI music generation tool for creating and editing full songs. [View Flow Music →]() Sources: [Flow Music on X](). [Read Flow Music adds BPM control with its Lyria 3.5 upgrade on Creators Toolbox]() --- Canonical source: https://creatorstoolbox.com/blog/flow-music-lyria-3-5