flute extended technique

So I found a few useful sites that have videos and whatnot, but none of them are telling me what the range and limitations of hollow tones and whistle tones are. Anyone able to help me out? Thanks.

I added what I know about these: [[Flute#Extended_techniques]]

Thanks, didnt think of checking here.

Hrm, I guess that means that hollow tones wont be going into this draft even though they would be cool.

Anyone have any idea whether it is possible to go for an Eb7 with whistle tones? I plan on playing it safe and saying within the specified range, but I'm just curious.

Oh, I forgot to ask: any idea how long I can expect a whistle tone to be sustained?

I wouldn't write an Eb7 period.

These are all "effects" and do not extend the range of the instrument. Most "effects" are tiring, so I wouldn't recommend writing extensive passages in them.

Maybe it's possible to get this note out of a piccolo by use of whistletone? It would be in range for piccolo.

Is that a statement I can apply to all effects for any instrument or just the flute? Not writing extensive passages, I just wanted to know about sustaining a single note.

For single notes, you're probably fine. As a general rule, woodwind players generally stick to traditional tone-production methods; flutists would be the exception.

They are generally amenable to multiphonics if you provide the fingering and if it's not too long a passage. There will always be exceptions, of course. One of composerorganist's clarinet solo pieces had some excellent movements consisting of mostly multiphonics.

Oh, I meant that extended techniques dont increase the range of an instrument.

Yes, that's usually the case. There are a few exceptions on flute, where a complex wave form can be produced that has resultant tones that are below the actually range of the flute.