Obbligato
Definition. Obligatory — an essential instrumental part, often a prominent solo line accompanying a vocal melody.
Detailed Explanation
Obbligato is Italian for ‘obligatory’ — an instrumental part that is essential and cannot be omitted. The term originates from Baroque practice where some parts of a score were marked obbligato (essential) and others ad libitum (optional, may be omitted).
In modern usage, obbligato most commonly refers to a prominent solo instrumental line that accompanies a vocal melody. The Bach cantatas are famous for their obbligato lines — a solo oboe, violin, or trumpet weaving an elaborate melody alongside the vocal soloist. The two lines are equal partners, neither subordinate to the other.
The marking is also used more loosely for any especially prominent instrumental solo within a larger texture. The term emphasizes that the part is essential to the music’s effect, not optional.
Etymology
Italian, past participle of obbligare (‘to oblige’), from Latin obligare.
In Practice
Treat the obbligato as a solo. Project, articulate clearly, shape phrasing expressively. The line is featured; play with the same care as a soloist.
Notable Examples
- Bach — Cantatas (extensive obbligato writing)
- Mozart — Operas (obbligato instrumental parts in arias)
Related Terms
Opposite Of
Frequently Asked Questions
What does Obbligato mean in music?
Obligatory — an essential instrumental part, often a prominent solo line accompanying a vocal melody.
Where does the word Obbligato come from?
Italian, past participle of obbligare (‘to oblige’), from Latin obligare.
How is Obbligato performed in practice?
Treat the obbligato as a solo. Project, articulate clearly, shape phrasing expressively. The line is featured; play with the same care as a soloist.
What musical terms are related to Obbligato?
Related terms include: Solo, Ad Libitum.
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