There is a story about a great Tabla maestro (the great father of my Guru Ustad Keramatulla Khan) who – as the story goes - in the presence of great maestros of his time played Tabla solo for 17 days 3 to 4 hours daily without repeating himself even once!
India all forms of art have been considered religiously. There is a saying,
"no music will be considered pure if it is not in adoration or praise
of God". Singers could always sing and praise God through lyrics
but the skin covered instrument players had no language to speak prayers
These four sounds named BOLS are:
SIVA (also a name for Siva: SHANKAR)