वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-4, chapter-32, verse-21

प्रविशन्नेव सततं शुश्राव मधुरस्वरम् ।
तन्त्रीगीतसमाकीर्णं समगीतपदाक्षरम् ॥२१॥

21. praviśanneva satataṃ śuśrāva madhurasvaram ,
tantrīgītasamākīrṇaṃ samagītapadākṣaram.

21. praviśan eva satatam śuśrāva madhurasvaram
tantrīgītasamākīrṇam samagītapadaakṣaram

21. saḥ praviśan eva satatam tantrīgītasamākīrṇam
samagītapadaakṣaram madhurasvaram śuśrāva

21. Just as he entered, he continuously heard a sweet melody, which was filled with the music of stringed instruments and consisted of perfectly harmonized words and syllables.

Words meanings summery:

• प्रविशन् (praviśan) - As he (Hanuman, implied subject) was entering (entering)

• एव (eva) - just, indeed, only

• सततम् (satatam) - continuously, always

• शुश्राव (śuśrāva) - he heard

• मधुरस्वरम् (madhurasvaram) - a sweet sound, a sweet voice/melody

• तन्त्रीगीतसमाकीर्णम् (tantrīgītasamākīrṇam) - filled with string music

• समगीतपदअक्षरम् (samagītapadaakṣaram) - with harmonized words and syllables, consisting of well-sung words and syllables

Words meanings and morphology

प्रविशन् (praviśan) - As he (Hanuman, implied subject) was entering (entering)

(adjective)

Nominative, masculine, singular of praviśat

praviśat - entering, one who enters

Present Active Participle

PAP of pra + viś (to enter)

Prefix: pra

Root: viś (class 6)

एव (eva) - just, indeed, only

(indeclinable)

Emphatic particle.

सततम् (satatam) - continuously, always

(indeclinable)

Also used as an adverb.

Note: Functions adverbially, modifying 'śuśrāva'.

शुश्राव (śuśrāva) - he heard

(verb)

3rd person , singular, active, perfect (liṭ) of śru

Perfect (Liṭ)

Reduplicated perfect of śru.

Root: śru (class 5)

Note: Refers to the action of the implied subject (Hanuman).

मधुरस्वरम् (madhurasvaram) - a sweet sound, a sweet voice/melody

(noun)

Accusative, masculine, singular of madhurasvara

madhurasvara - sweet sound, melodious voice

Compound of madhura (sweet) and svara (sound/voice).

Compound type : karmadhāraya (madhura+svara)

• madhura – sweet, pleasant, charming
  adjective (masculine)
• svara – sound, tone, voice, melody
  noun (masculine)
  Derived from root svṛ (to sound)
  Root: svṛ (class 1)

Note: Direct object of 'śuśrāva'.

तन्त्रीगीतसमाकीर्णम् (tantrīgītasamākīrṇam) - filled with string music

(adjective)

Accusative, masculine, singular of tantrīgītasamākīrṇa

tantrīgītasamākīrṇa - filled/permeated with the music of stringed instruments

Compound describing the sound.

Compound type : tatpuruṣa (tantrīgīta+samākīrṇa)

• tantrīgīta – string music, music from stringed instruments
  noun (neuter)
  Compound of tantrī (stringed instrument) and gīta (song/music)
• samākīrṇa – filled, permeated, covered
  adjective (masculine)
  Past Passive Participle
  PPP of sam + ā + kṝ (to scatter, spread)
  Prefixes: sam+ā
  Root: kṝ (class 6)

समगीतपदअक्षरम् (samagītapadaakṣaram) - with harmonized words and syllables, consisting of well-sung words and syllables

(adjective)

Accusative, masculine, singular of samagītapadaakṣara

samagītapadaakṣara - having words and syllables that are well-sung/harmonized

Bahuvrīhi compound.

Compound type : bahuvrīhi (samagīta+pada+akṣara)

• samagīta – well-sung, harmonized, properly sung
  adjective (neuter)
  Past Passive Participle
  PPP of sam + gai (to sing)
  Prefix: sam
  Root: gai (class 1)
• pada – word, foot (of verse), step
  noun (neuter)
• akṣara – syllable, imperishable, letter
  noun (neuter)