For the last couple of years users have participated in discussions in the KnowYourRaga forums. This page attempts to organize the information in the forums and to answer some of the commonly asked questions.
A lot of people want to know what scale bansuri should they buy to begin with.
The first thing to consider is that longer flutes have a deeper, bassy sound but are heavy and can be more difficult to grip(at least in the beginning). Smaller flutes on the other hand would be louder and shrill. If you are not sure what scale to go for then just pick up the G medium bansuri as it is recommended by most people.
The choice also depends on what kind of music you want to play. If you like the sound of the longer bass flutes then buying a shorter flute might not be the way to go. Even though the longer flute would be difficult to start with you might be more motivated to play it since the sound attracts you to it.
For more information you can listen to samples of different flutes on the bansuri selection page.
It is common to get a hissing sound when you play the flute in the beginning. Sometimes you will find that you are able to play some notes better than the others. This is also common and generally it is more difficult to play notes that require you to close more holes.
To tackle this issue you need to focus on two things:
A common problem faced by people learning to play the bansuri is not being able to play the notes of the higher octave. For playing higher notes you have to keep the following things in mind:
In the beginning playing Pa is the toughest because you have to close all the holes and even if there is leakage in one hole the sound wont come out properly. So try playing higher notes Sa or Ni or Dha first.
There are two techniques for playing half notes on a bansuri. You can either lift your finger up slightly or you can slide your finger to the side. Try both and see what suits you.
You can start by watching the bansuri making videos by Ram Ashish.
I am planning to create a separate page to organize information on this topic. Hopefully I will be able to do that soon.