Doug_Tipple wrote:.......
Also, when you tape one of the exhaust ports, it alters the intonation of the whole flute. Having a good C# and eveything else way off pitch isn't such a good idea, in my opinion. With a keyed flute you cover the 7th hole when you want a C#, but otherwise the hole is open.
Cheers,
Doug Tipple
Yes I can't disagree with you on issues of precise intonation here
but the liminal intonation status (please excuse my clumsy expression)
can be part of the beauty.
It depends on the music you're playing.
For instance I play a Marwa raag with a C tonic (that's a cross-fingered C)
the raag scale is
C C# E F# (G) A B
and the intonation is fine with this because it is a mysterious
slightly off-sounding scale and even in the Indian tradition
it is acknowledged for this.
The fifth note isn't used in the actual raag and
its
vadi is the second which is C#.
In the absence of a 5th there is no primary harmonic for the tonic
and the secondary harmonic of the 4th is also non existant in this scale
because the 4th has been augmented.
However the diminished 2nd, the C#, has a secondary harmonic relationship
with the F# and resolves the raag.
So the low "perfect" C# works quite well.
Also, the question of the D intonation does not arise because D is omitted.
The intonations of F# the secondary harmonic to C# and the samvadi
note of B work very well.
Also, typically, for raags with an augmented 4th
the scale begins on the lower 7th and misses the "off" tonic
unti the final "resolution"
ascending: B- C# E F# A B A C+
decending: B C#+ B A F# E C# B- A- C
This is just an expression of the scale.
Try before you buy.