Surrounding him were the Vidyadharas, Apsaras, Kinnaras, Patagas (birds) and Uragas (snakes). All of them were offering Indra their respects and services, and the Apsaras and Gandharvas were dancing and singing with very sweet musical instruments

Expressions researched:
"All of them were offering Indra their respects and services, and the Apsaras and Gandharvas were dancing and singing with very sweet musical instruments" |"and Uragas" |"surrounding him were the Vidyadharas, Apsaras, Kinnaras, Patagas"

SB Canto 6

O King, once upon a time, the King of heaven, Indra, being extremely proud because of his great opulence of the three worlds, transgressed the law of Vedic etiquette. Seated on his throne, he was surrounded by the Maruts, Vasus, Rudras, Ādityas, Ṛbhus, Viśvadevas, Sādhyas, Aśvinī-kumāras, Siddhas, Cāraṇas and Gandharvas and by great saintly persons. Also surrounding him were the Vidyādharas, Apsarās, Kinnaras, Patagas (birds) and Uragas (snakes). All of them were offering Indra their respects and services, and the Apsarās and Gandharvas were dancing and singing with very sweet musical instruments.

SB 6.7.2-8, Translation:

Śukadeva Gosvāmī said: O King, once upon a time, the King of heaven, Indra, being extremely proud because of his great opulence of the three worlds, transgressed the law of Vedic etiquette. Seated on his throne, he was surrounded by the Maruts, Vasus, Rudras, Ādityas, Ṛbhus, Viśvadevas, Sādhyas, Aśvinī-kumāras, Siddhas, Cāraṇas and Gandharvas and by great saintly persons. Also surrounding him were the Vidyādharas, Apsarās, Kinnaras, Patagas (birds) and Uragas (snakes). All of them were offering Indra their respects and services, and the Apsarās and Gandharvas were dancing and singing with very sweet musical instruments. Over Indra's head was a white umbrella as effulgent as the full moon. Fanned by yak-tail whisks and served with all the paraphernalia of a great king, Indra was sitting with his wife, Śacīdevī, who occupied half the throne, when the great sage Bṛhaspati appeared in that assembly. Bṛhaspati, the best of the sages, was the spiritual master of Indra and the demigods and was respected by the demigods and demons alike. Nevertheless, although Indra saw his spiritual master before him, he did not rise from his own seat or offer a seat to his spiritual master, nor did Indra offer him a respectful welcome. Indra did nothing to show him respect.