noun -
something that serves as a model or a basis for making copies
noun -
an original creation (i.e., an audio recording) from which copies can be made
adjective -
being or productive of something fresh and unusual; or being as first made or thought of
adjective -
not derived or copied or translated from something else
adjective -
(of e.g. information) not secondhand or by way of something intermediary
adjective -
preceding all others in time or being as first made or performed