Jalarnavam (pronounced , meaning the ocean) is a ragam in Carnatic music (musical scale of South Indian classical music). It is the 38th Melakarta rÃÂgam in the 72 melakarta rÃÂgam system of Carnatic music.
It is called Jaganmà Âhanam in Muthuswami Dikshitar school of Carnatic music.
It is the 2nd rÃÂgam in the 7th chakra Rishi. The mnemonic name is Rishi-Sri. The mnemonic phrase is sa ra ga mi pa dha ni. Its ' structure (ascending and descending scale) is as follows (see swaras in Carnatic music for details on below notation and terms):
(the specific notes used in this scale are shuddha rishabham, shuddha gandharam, prati madhyamam, shuddha dhaivatham, kaisiki nishadham)
As it is a melakarta rÃÂgam, by definition it is a sampoorna rÃÂgam (has all seven notes in ascending and descending scale). It is the prati madhyamam equivalent of Ratnangi, which is the 2nd melakarta.
Jalarnavam has a minor janya rÃÂgam (derived scale) associated with it. See List of janya rÃÂgams for full list of rÃÂgams associated with Jalarnavam and other melakarta rÃÂgams.
A few compositions set to this scale are:
This section covers the theoretical and scientific aspect of this rÃÂgam.
Jalarnavam's notes when shifted using Graha bhedam, yields no other melakarta rÃÂgam, like all 6 rÃÂgams in the Rishi chakra (Salagam, Jhalavarali, Navaneetam, Pavani and Raghupriya being the other 5). Only these rÃÂgams have a gap of 3 notes anywhere in their scale, between G1|to M2. Such a gap does not occur in any other melakarta by definition.
Graha bhedam is the step taken in keeping the relative note frequencies same, while shifting the shadjam to the next note in the rÃÂgam.