Gopalacampu 1.21.136

1.21.136

kiṃ ca-
rādhākarṣa-kṛte kṛtā muralikā-śikṣātha yā yā tadā
sā sā tena sadāśayā valayitāpy āsīd alaṃ niṣkalā |
tām etāṃ nata-kandharaḥ sa-pulakaṃ vande' ham uccaiḥ sadā
yā kṛṣṇasya manorathāvalim aho pūrṇam akārsīn muhuḥ || [śārdūla-vikrīḍītam]

Moreover:
Whatever practice of the flute was performed then to attract Rādhā,
that very practice, though directed by Him with earnest intent, remained entirely silent;
with bowed head and bristling hair of delight, I always praise loudly that flute,
which, oh wonder, again and again fulfilled Kṛṣṇa’s series of desires!