缓急吟slow then quick vibrato
Pinyin: huǎn jí yín
Vibrato and glidesTwo plucks on the same string, both with yin: the first slow, the second quick.
How it is played
Two notes in succession on one string, each with yin, the first slow and the second quick; Qinxue Rumen states expressly that there is no quick-then-slow form.
How it sounds
The ring of the two notes turns from relaxed to pressing, like a mood gathering pace.
In the classical handbooks
一絃兩彈，而俱用吟者，分先緩後急。Gist: Two plucks on one string, both with yin, divided into slow first and quick after.
同絃兩彈俱用吟者，有分先緩後急，未有先急而後緩也。Gist: Two plucks on the same string both with yin may be slow first and quick after; there is no quick first and slow after.
Easily confused with
- 双吟shuāng yín· paired vibratoIn shuang yin both notes take the same even yin, with no slow-quick contrast.