Canto 3 -
Araṇya-kāṇḍa
Chapter 11: Rāma Goes to Agastya’s Āśrama
Text 3.11.20

तासां सङ्क्रीडमानानामेष वादित्रनिःस्वनः।
श्रूयते भूषणोन्मिश्रो गीतशब्दो मनोहरः॥

tāsāṁ saṅkrīḍamānānām eṣa vāditra-niḥsvanaḥ
śrūyate bhūṣaṇonmiśro gīta-śabdo manoharaḥ

tāsām = their; saṅkrīḍamānānām = while they sport about; eṣaḥ = here; vāditra-niḥsvanaḥ = and musical instruments; śrūyate = can be heard; bhūṣaṇa-unmiśraḥ = mixed with the sound of ornaments; gīta-śabdaḥ = sound of songs; manoharaḥ = the charming.

The charming sound of songs and musical instruments mixed with the sound of their ornaments while they sport about can be heard here.