question is, Keat's opus.... answer is Keat's opus is a POEM

there's a few informations..

opus 1 - studies.

and he used opus number, 1 to 5.

I don't know about opus 2~5..

Opus II

A fugue is a musical form. An opus is a musical composition. Therefore a fugue is not an opus, nor is an opus a fugue.

A composer may compose a fugue and give it an opus number. In that case, a specific fugue is identified by a specific opus number in its composer's catalogue:

'Fugue in G minor for organ, opus 99, by Franz Schnitzelgruber.'

Opus Atlantica was created in 2001.