Definitions

1. noun

a passage of music, especially a solo or a passage of brilliant display, that is indicated by a marking to be played more loudly and with emphasis

“The orchestra’s dramatic entrance was marked obbligato, and it grabbed the audience’s attention immediately.”

2. adjective

indicating that a passage of music is to be played with emphasis or more loudly

“The obbligato melody stood out from the rest of the orchestra’s performance.”