Swara & Shruti (Indian music)

The swara differs from the shruti concept in Indian music. A shruti is the smallest gradation of pitch that a human ear can detect and a singer or instrument can produce.[3] A swara is the selected pitches from which the musician constructs the scales, melodies and ragas. The ancient Sanskrit text Natya Shastra identifies and discusses twenty two shruti and seven swara.[3] The swara studies in ancient Sanskrit texts include the musical gamut and its tuning, categories of melodic models and the raga compositions.[4]

Source: Svara – Wikipedia