Choose music for TikTok carousels

Add a track picker to TikTok publishing so eligible connected accounts can preview and choose a track from TikTok’s Commercial Music Library Top 100, including country filtering, for photo carousels. Save the selected track with the post and pass it through Zernio at publish time. Keep TikTok’s existing auto-add music option for accounts that cannot select a track, and clearly explain account eligibility and music availability.