Nada Bindu Upanishad is a minor Upanishad, which is part of the
Rig Veda. It is one of the 108
Upanishads, in the Indian Philosophy. Nada Bindu Upanishad gives a detailed description on Omkara, the first sacred sound of creation.
Nada Bindu Upanishad has references to many musical instruments, like flute,
veena, and maddala.
