SB 10.33.9
kacit samam mukundena
svara-jatir amisritah
unninye pujita tena
priyata sadhu sadhv iti
tad eva dhruvam unninye
tasyai manam ca bahv adat
Translation:
One gopi, joining Lord Mukunda in His singing, sang pure melodious tones that rose harmoniously above His. Krsna was pleased and showed great appreciation for her performance, saying “Excellent! Excellent!” Then another gopi repeated the same melody, but in a special metrical pattern, and Krsna praised her also.