CoSo

Make music in the moment

CoSo is the AI-assisted sound creation app that lets you follow your instincts and make music in the moment. Whether you’re making unique music for your social posts or getting inspo for your next hit, CoSo is the app to bring instinctive creation to your fingertips.

Stop digging—start creating

CoSo listens to your track in real-time, then serves up Complementary Sounds that go together. With the "does this sound good together" out of the process, you can focus on letting your creative instincts lead you.

Instinctual creativity

Create a Stack by choosing a style then add up to eight instrumental layers from across the Splice catalog—every selection is uniquely yours and destined to work.

Everything under your thumb

Swipe right to choose a new sound, swipe left to delete, tap a layer to mute it, and long-press to solo. CoSo’s here to create musical momentum.

Save. Send. Share.

Save you Stacks to your library, share with a friend, upload a video to your socials or export and download it as an Ableton Live session. You can also locate your sounds in the Splice library on splice.com or in our desktop app to use them in your DAW.