Noun

1. A part of the score that must be played as written; a required part.
2. An elaborate or flowery countermelody, often written to be played or sung above the principal theme (in a higher pitch range). Frequently includes a repetitive motif.

   John Philip Sousa's The Stars and Stripes Forever includes a famous piccolo obbligato.

Adjective

1. obliged, compelled, constrained, forced, bound
2. obligatory, unavoidable, forced
3. obliged, indebted
4. fixed, set

   percorso obbligato - fixed course

5. obbligato

Synonyms

• costretto (1)
• vincolato (1)
• imposto (2)
• inevitabile (2)
• obbligatorio (2,4)
• grato (3)
• riconoscente (3)
• fisso (4)