CC Madhya 13.167

prabhura bhāvānurūpa svarūpera gāna
yabe yei rasa tāhā kare mūrtimān
Word for word: 
prabhura — of Śrī Caitanya Mahāprabhu; bhāva-anurūpa — following the ecstatic emotions; svarūpera — of Svarūpa Dāmodara; gāna — the singing; yabe — when; yei — whatever; rasa — mellow; tāhā — that; kare — makes; mūrtimān — personified.
Translation: 
Svarūpa Dāmodara used to sing exactly according to the ecstatic emotion of the Lord. Whenever a particular mellow was being tasted by Śrī Caitanya Mahāprabhu, Svarūpa Dāmodara would personify it by singing.