महाभारतः mahābhārataḥ - book-9, chapter-36, verse-11

विश्वावसुमुखास्तत्र गन्धर्वास्तपसान्विताः ।
नृत्तवादित्रगीतं च कुर्वन्ति सुमनोरमम् ॥११॥

11. viśvāvasumukhāstatra gandharvāstapasānvitāḥ ,
nṛttavāditragītaṁ ca kurvanti sumanoramam.

11. viśvāvasumukhāḥ tatra gandharvāḥ tapasāanvitāḥ
nṛttavāditragītaṃ ca kurvanti sumanoramaṃ

11. tatra viśvāvasumukhāḥ tapasāanvitāḥ gandharvāḥ
ca sumanoramaṃ nṛttavāditragītaṃ kurvanti

11. There, Gandharvas, led by Viśvāvasu and endowed with spiritual austerity (tapas), perform delightful dance, instrumental music, and song.

Words meanings summery:

• विश्वावसुमुखाः (viśvāvasumukhāḥ) - headed by Viśvāvasu, with Viśvāvasu as the chief

• तत्र (tatra) - there, in that place

• गन्धर्वाः (gandharvāḥ) - Gandharvas (celestial musicians and dancers)

• तपसाअन्विताः (tapasāanvitāḥ) - endowed with austerity (tapas), accompanied by spiritual penance

• नृत्तवादित्रगीतं (nṛttavāditragītaṁ) - dance, instrumental music, and song (collectively)

• च (ca) - and, also

• कुर्वन्ति (kurvanti) - they do, they perform, they make

• सुमनोरमं (sumanoramaṁ) - very charming, delightful, pleasing

Words meanings and morphology

विश्वावसुमुखाः (viśvāvasumukhāḥ) - headed by Viśvāvasu, with Viśvāvasu as the chief

(adjective)

Nominative, masculine, plural of viśvāvasumukha

viśvāvasumukha - headed by Viśvāvasu, having Viśvāvasu as foremost

Compound type : tatpuruṣa (viśvāvasu+mukha)

• viśvāvasu – Viśvāvasu (name of a prominent Gandharva)
  proper noun (masculine)
• mukha – face, mouth, chief, foremost
  noun (neuter)

तत्र (tatra) - there, in that place

(indeclinable)

गन्धर्वाः (gandharvāḥ) - Gandharvas (celestial musicians and dancers)

(noun)

Nominative, masculine, plural of gandharva

gandharva - Gandharva (a class of celestial beings, musicians of the gods)

तपसाअन्विताः (tapasāanvitāḥ) - endowed with austerity (tapas), accompanied by spiritual penance

(adjective)

Nominative, masculine, plural of tapasānvita

tapasānvita - accompanied by austerity, endowed with penance

Compound type : tatpuruṣa (tapas+anvita)

• tapas – austerity, spiritual penance, heat, religious devotion
  noun (neuter)
• anvita – accompanied, endowed with, connected, joined
  adjective (masculine)
  Past Passive Participle
  From root 'iṇ' with prefix 'anu'
  Prefix: anu
  Root: iṇ

नृत्तवादित्रगीतं (nṛttavāditragītaṁ) - dance, instrumental music, and song (collectively)

(noun)

Accusative, neuter, singular of nṛttavāditragīta

nṛttavāditragīta - dance, instrumental music, and song

Compound type : dvandva (nṛtta+vāditra+gīta)

• nṛtta – dance, dancing
  noun (neuter)
  Past Passive Participle (used as noun)
  From root 'nṛt'
  Root: nṛt
• vāditra – instrumental music, musical instrument
  noun (neuter)
  Formed from root 'vad' (to speak/sound) with suffix '-itra'
  Root: vad
• gīta – song, singing
  noun (neuter)
  Past Passive Participle (used as noun)
  From root 'gai' (to sing)
  Root: gai

च (ca) - and, also

(indeclinable)

कुर्वन्ति (kurvanti) - they do, they perform, they make

(verb)

3rd person , plural, active, present (laṭ) of kṛ

Root: kṛ (class 8)

सुमनोरमं (sumanoramaṁ) - very charming, delightful, pleasing

(adjective)

Accusative, neuter, singular of sumanorama

sumanorama - very charming, delightful, pleasing to the mind

Compound type : pra-ādi-samāsa (su+manorama)

• su – good, well, excellent, very
  indeclinable
• manorama – pleasing to the mind, charming, beautiful, lovely
  adjective (masculine)