This is the 12941st most frequent Russian word.
лилась
"Лилась" means "flowed" or "was pouring" in English.
Here 'лилась' is used to describe the flowing movement of water.
По реке весело лилась прозрачная вода.
Clear water flowed merrily down the river.
In this sentence, 'лилась' metaphorically describes the smooth and continuous spread of music in the air.
Музыка лилась, наполняя комнату гармонией.
Music flowed, filling the room with harmony.
'Лилась' describes the pouring action of water falling in a steady stream.