• Pick a random trackID
  • {note: if tanda is generated as part of a playlist, this track will be supplied by playlist logic to ensure it fits into tanda-order rules: right dance type, OK orquesta/singer}
• Get its type, orquesta, singer, year, spotifyID, prettyTitle
• Get all the other trackIDs that ...
  • Have same type
  • Have same orquesta
  • Contain same singer (contain, so that if a track only has one singer, it can match multi-singer tracks containing that one singer)
  • Have year value within +-3 on either side
  • Do not have "cumparsita" in prettyTitle
• Of those, randomly pull 2 trackIDs
• If there aren't 2 more, start over
• Output those 3 trackIDs

Main logic

• Build a first tanda of type tango
  • Specify year<1945
  • Specify singer=false
• Repeat 3 times: {note: this will eventually be variable by milonga length}
  • Build a tanda of type tango
    • Pick a random trackID of type tango
    • Do the subroutine for playlist-appropriateness
    • Do the subroutine for building a tanda
  • Build a tanda of type vals
    • Pick a random trackID of type vals
    • Do the subroutine for playlist-appropriateness
    • Do the subroutine for building a tanda
  • Build a tanda of type tango
    • Pick a random trackID of type tango
    • Do the subroutine for playlist-appropriateness
    • Do the subroutine for building a tanda
  • Build a tanda of type tango
    • Pick a random trackID of type tango
    • Do the subroutine for playlist-appropriateness
    • Do the subroutine for building a tanda
  • Build a tanda of type milonga
    • Pick a random trackID of type milonga
    • Do the subroutine for playlist-appropriateness
    • Do the subroutine for building a tanda
  • Build a tanda of type tango
    • Pick a random trackID of type tango
    • Do the subroutine for playlist-appropriateness
    • Do the subroutine for building a tanda

Subroutine: playlist-appropriateness

• Get its orquesta, singer
• Check back last 6 tandas for match in orquesta or singer
  • If match, fail and start over
  • If no match, pass and continue