Rishabh (svara)
Rishabh is the second svara from the seven pronouncing while singing the syllable, Rishabh is pronounced as Re and Ri (notation - R). It is also called as ऋषभ in the Devanagri script. Detail. The following is the information about Rishabh and its importance in Indian classical music : षड् - 6, ज -जन्म . Therefore, it collectively means giving birth to the other 6 notes of the music. So the svara Re is formed from Shadja. Consequently, the Re after the Sa of 480 Hz (Taar Saptak) has a frequency of 540 Hz i.e. the double of the Lower octave Re . For example, if these are the 3 Shruti's of Re then, Sa, Re, Ga, Ma, Pa, Dha, Ni - Shuddha Svaras Difference in pronouncing. In the introductory part of Risaba it is given that, 'Risabh is the long form of the syllables रे and री. For simplicity in pronouncing while singing the syllable, Risabh is pronounced as Re and Ri'. This is given because the pronouncing of the syllable Re is different in the Hindustani classical music and Carnatic classical music. In Hindustani classical music, the pronouncing of Risabha is done as Re and in Carnatic classical music, the pronouncing  of Risabh is done as Ri. So a Hindustani classical singer will sing the 7 svaras as : Sa Re Ga Ma Pa Dha Ni Sa. While a Carnatic classical singer will sing these svaras like : Sa Ri Ga Ma Pa Dha Ni Sa.