Can a student who used pre-composed samples and sequenced them as part of an electronic music performance transform these samples to be used as original melodies for their composition?

No credit can be given for musical ideas that were not invented by the candidate. Therefore, for any composition that uses pre-composed samples, a recording of the original samples must be included in addition to the recording of the finished composition, and any commentary must include details of exactly how the samples were sequenced and transformed.