Canto 1 - Boyhood
Bāla-kāṇḍa
Chapter 49: Lord Rāmacandra Delivers Ahalyā
Text 1.49.21

पुष्पवृष्टिर्महत्यासीद्देवदुन्दुभिनिस्वनैः।
गन्धर्वाप्सरसां चापि महानासीत्समागमः॥

puṣpa-vṛṣṭir mahaty āsīd deva-dundubhi-nisvanaiḥ
gandharvāpsarasāṁ
cāpi mahān āsīt samāgamaḥ

puṣpa-vṛṣṭiḥ mahatī āsīt = flowers were abundantly showered on Śrī Rāma; deva-dundubhi-nisvanaiḥ = while dundubhi drums were sounded by the demigods; gandharva-apsarasām ca api = of gandharvas and apsarās [watching this event]; mahān āsīt samāgamaḥ there was also a large assembly.

Flowers were abundantly showered on Śrī Rāma while dundubhi drums were sounded by the demigods. There was also a large assembly of gandharvas and apsarās [watching this event].

It is understood that the assembled gandharvas and apsarās danced, sang and so on.