A rather obvious topic that I didn't find good resources for when I was first interested in my shakuhachi. It got shelved for a long time because of that.
This topic isn't about the other necessary things:
- Finger placement and general handling.
- Embouchure - The shape of the mouth when blowing.
Other shakuhachi terminology.
If you can't put the flute to your mouth and make a decent note quite quickly, you probably aren't ready for anything more than Mary Had a Little Lamb and maybe not even that, yet. This is fine; accept your limitations so you have some place to set goals from.