The scale of performance could be looked as an important character of Chamber Choir and other types based on this division group. But it is true that that's not the only standard.

但是合唱规模的大小不是其合唱形式的唯一依据，室内合唱、大合唱等除了表演规模上的鲜明特征，对作品的要求也是十分重要的。

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There's a new recording of it from conductor Paul Hillier and the Estonian Philharmonic Chamber Choir.

NPR: Rachmaninov's Refreshing 'All Night Vigil'

Then we hear excerpts from his Serenata "Ascanio in Alba, " written for the Duke of Milan, and recorded by the Mozarteum Orchestra and Salzburg Chamber Choir.

NPR: Mozart's Job Hunting Dilemma

The sheer power of these accumulated forces can shake a listener to the core. (Two conductors are needed for the premiere, Meredith Davies conducted the main orchestra and choir, while Britten conducted the chamber orchestra and the tenor and baritone soloists.) Britten selected for his text nine poems by Lt.

WSJ: The Sounds of Sacrifice | Benjamin Britten | War Requiem | Masterpiece by Stuart Isacoff