Hi felicity0,
Welcome to Apple Support Communities.
We understand that you want to sync Shazam across all devices and have the music synced to Spotify. You reviewed a helpful article. You want to be signed in with the same Apple ID on all devices that use iCloud. Using the steps from the support article reviewed, Use Shazam on iPhone, iPad, iPod touch, Apple Watch, or Mac, ensure you have Shazam sync enabled from iOS devices.
Check out this article for more information about Shazam and other music services: Use Shazam with Apple Music, Snapchat, and more
"Spotify
If you have the Spotify app on your device, you can connect Shazam to your Spotify account:
- On iPhone or iPad, swipe up to My Music from the main Shazam screen. On Android, swipe left to the Library from the main Shazam screen.
- Tap the Settings button
, then tap Connect next to Spotify. - Tap Agree in Spotify. To automatically sync your Shazams to a "My Shazam Tracks" playlist in Spotify, tap OK.
Once you’ve connected Shazam to your Spotify account, you can listen to your Shazams:
- To listen to the whole song in Spotify, tap Spotify next to a Shazam.
- Listen to Shazams in the My Shazam Tracks playlist in the Spotify app.
- If you initially chose not to sync your Shazams to Spotify, you can choose to at any time in Shazam Settings."
Regards