[Playlist] Nested Playlists, Embedded User Fields

Hi all,

I am a DJ for 17 years so I use playlist extensively. Please allow me to make some suggestions.

1. In my field (tango music) we often use a set of 4 songs as one element (tanda), and separate each tanda with another interlude song (cortina).

While I can store the entire playlist as one file, I really would prefer a simple way to embed playlist in playlist.

2. Are there any extensible user defined fields in XSPF that a DJ can add his own app-specific notes? We frequently add information about speed and volume changes to specific points in a playlist.

3. If there is a way to embed user-defined fields or scripts in playlist, then we can create apps that can drive two engines, like one music and one digital control, so we can perhaps use one playlist format to store everything we need to automate a stage production.

Forgive my ignorance if any of these are solved problems.

Kace