Tango.info music terminology

WORK IN PROGRESS

fixation

countable noun

• a recording that is not derived from one single other recording

track

• part of a product

recording

• per ISRC definition
  • either an initial recording or one derived through re-mastering or transfer

historical recording

In tango.info called fixation.

original recording

In tango.info called fixation.

performance

Performance implies audience present.
How would you name the same act without audience present?
If recorded, then a 'recording session'. 
If not recorded, then just a 'session'.

transfer

• e.g. from analog to digital

work

• ISWC definition
  • is there any or is there just usage?
  • several issues, section needs extension.

Story: A person /improvised/ on a public domain work and GEMA declared the audio to be a new work, which he had to pay royalties for, since the person was a member of GEMA.