Samsung music

[KT1306]

I have some tracks from Spotify in samsung music but they won't play .

[Tourbillon De La Vie]

what format are those tracks (mp3 etc)?

[JAMES4578]

Samsung Music  natively supports these file types:  mp3, m4a, mp4, 3gp, 3ga, ogg, oga, aac, and flac. can you confirm the file types.

See some information here https://www.samsung.com/Files on Samsung Phone Not Recognised 

However a number of apps  such as Poweramp will play a wider variety, VLC for instance is another option.  A review of other apps here  for anyone who may be interested. https://www.androidauthority.com/best-music-player-apps-for-android 

[KT1306]

Not sure I think one was showing as something that wasn't supported on this phone when I had as ringtone on old Samsung phone - data transferred

[KT1306]

How do I get music in acceptable form to phone

[JAMES4578]

You could try  a convertor such as these one detailed https://www.fonelab.com/resource/mp3-converter-android.html  or the Play store.