“声乐套曲”是声乐作品的一种体裁。含有多首歌曲，各首歌曲或者表达同一主题，或者是抒发作曲家的某一情怀，或者只是统一于同一风格。 Song cycle，连篇歌曲。

• 声乐套曲中的各首歌曲是可以独立成曲的。甚至可能只有其中的几首可以独立的流传，比如“总政版”的《长征组歌》中就只有《飞跃大渡河》和《过雪山草地》因为曾被收入大型音乐舞蹈史诗《东方红》中才得以流传。

A song cycle (German: Liederkreis or Liederzyklus) is a group, or cycle, of individually complete songs designed to be performed in a sequence as a unit.

The songs are either for solo voice or an ensemble, or rarely a combination of solo songs mingled with choral pieces. The number of songs in a song cycle may be as brief as two songs or as long as 30 or more songs. The term "song cycle" did not enter lexicography until 1865, in Arrey von Dommer's edition of Koch’s Musikalisches Lexikon, but works definable in retrospect as song cycles existed long before then. One of the earliest examples may be the set of seven Cantigas de amigo by the 13th-century Galician jongleur Martin Codax.