how do I relate one vocabulary to another..?

hi,

I have one vocabulary 'artists' which has to be available for different content types such as 'gigs', and then I'd like to have another vocabulary 'releases' that should basically be a "sub-vocab" of 'artists' - but should not be visible for artists' content types.. So a hierarchical vocabulary 'artists->releaes' would probably not really work in this case..

I think this module would basically do the job:
http://drupal.org/project/taxonomy_vocab_relate

..but it doesn't exist for dp5..:|

+ artist1
`-> gig1
`-> gig2
`-> gig3
`-> gig4
+-release1
`-> track1
`-> track2
`-> review1
`-> review2
+-release2
`-> track1
`-> track2
`-> review1
`-> review2

thank you very much, greetz, t..