Add multiple tracks

[tomjowitt]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 75.00000% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 51.82%. Comparing base (d41c3cc) to head (da70f14).
Report is 1 commits behind head on main.

Files	Patch %	Lines
album.go	75.00%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #38      +/-   ##
==========================================
+ Coverage   46.63%   51.82%   +5.18%     
==========================================
  Files           4        4              
  Lines         238      247       +9     
==========================================
+ Hits          111      128      +17     
+ Misses        103       98       -5     
+ Partials       24       21       -3     

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