RequestableTrack

A record the station could be asked for: one it holds, or one a music provider carries

Attributes (7)

Attribute	Type	Required	Description
trackId	string	No	What to send as trackId to make the request. Absent for a record from a provider, which is asked for by source instead
source	RequestableSource	No	Where a record the station does not hold yet comes from. Send it as source to ask for it
sourceName	string	No	The provider, as the station names it, for a record from one
title	string	Yes
artist	string	Yes	The lead artist
album	string	No
year	number	No