thenpaanan wrote: ↑01 Feb 2022, 20:34
I do not get the same sensation of sruthi-alignment in a concert with flute and violin, for example.
There is such a thing as operator error. Having said that, I have certainly made shruti one of my life's centerpieces, both from a sensual/aural and scientific perspective.
In general, violinists of many schools have high degree of precision, because otherwise the violin will sound awful. But some schools are better than others, for example MSG of course, Dwaram garu, and of course the violin trio...L Subramaniam etc. So when there is a misalignment between flute and violin, it is usually a flute problem. There are some serious technical challenges with flute, particularly 5 kattai (G).
The aadhara shadja of chitravenu can be anything within a range, but the most optimal in my reckoning at G, which is what I have chosen for this recording. There are other recordings online with D and also F I think. But that doesn't tell the whole story. The absolute frequencies of each octave is best expressed as a piano octave number. From that numbering scheme, the chitravenu's aadhara shadja is G4 (~392Hz) and the mel-sa is G5.
That's a whole octave lower than the Mali shruti ( B N Suresh, S P Natarajan, J B Shruti Sagar, etc) 5 kattai flute where the aadhara is at G5 and the mel sa is at G6. It is easier to align with shruti at G4 than G5, for reasons I'll explain below. Of course chitravenu is still harder for other reasons explained in the video link below. Back to topic, in the western sense, the G5 Mali flute is in the piccolo range. There is a good discussion about absolute pitches in this thread:
viewtopic.php?t=20697
Absolute frequencies are very poorly understood in CM circles.
There is a phenomenon well-documented in piano acoustics known as octave stretching where the ear wants to hear a slightly higher pitch than the true one as we go higher, to G6 and beyond. Pianos are tuned according to the Railsback curve which can be looked up. In my experience, something similar happens in the flute/piccolo world and
it is significantly harder to align to shruti with the 5 kattai flute. Just a few semtones lower, the 2.5 kattai flute is much more shruti friendly. For that and many other reasons, most flautists have shifted to 2.5. But those that have stuck to 5 kattais need to put more work into staying shruti aligned.
One may notice that Pt. Hariprasad Chaurasia is extremely shruti aligned. This certainly his great sensitivity, the culture of shruti sensitivity in HM,
but it is also the absolute range. It is very easy to give the impression of shruti shuddham at a flute aadhara shadja of D4, which is what he uses these day. That's 1.5 octaves below the Mali Aadhara shadja. Pt. Chaurasia sometimes picks up a very small flute to play some folkish dhun and the preternatural shruti shuddham goes out the window and it hardly matters. It's a folkish tune and only a rough tunefulness is enough.. Only the folkish bhavam matters. So context is important.
I hope that answers some of the questions. I have also posted an unlisted video (maybe I'll make it public don't know) which is a continuation of my previous video, where I talk about some of the technical challenges of chtravenu,
particulary about shruti:
https://www.youtube.com/watch?v=-P5S0KojzhU