Celli

Celli is the plural form of cello in Italian. In music notation and discourse, the term denotes the cello family or the cello section within an orchestra or chamber ensemble. On scores, composers often label "I Celli" and "II Celli" to distinguish first and second cello groups.

The instrument referred to is the violoncello, a member of the violin family. The common shortened form in English is "cello," but "celli" appears as the Italian plural in scores and descriptive text. Cellos are four-string instruments usually tuned to C-G-D-A, played with a bow, and placed between the player's knees with an endpin supporting the instrument on the floor. They are known for a wide lower range and a rich, singing tone that anchors bass and tenor lines in classical music, while also playing a prominent role in chamber music and modern ensembles.

Beyond the musical term, Celli also exists as an Italian surname. In that context, it refers to people or families bearing the name. As a term in musical usage, "celli" functions primarily to indicate the cello section or group within a performing ensemble.