This is the 11576th most frequent Portuguese word.
partitura
"Partitura" in English refers to a "musical score," which is the written or printed representation of a musical composition.
Here, 'partitura' is used to refer to musical sheet music, a common usage of the term.
A partitura do piano estava sobre o pedestal.
The piano sheet music was on the stand.
'Partitura' in this sentence represents the notation of music for the purpose of documenting a musical piece.
Ele começou a escrever uma nova partitura para sua composição.
He began writing a new sheet music for his composition.
In this context, 'partitura' implies the written representation of melodies within a composition.