Flutes and 笛子

Some things to consider:

1. The 口笛 has no equivalent. I don't even know how to explain this other than: an open pipe either 5 to 6 cm long or 8 to 9 cm long.
2. D 小笛 is traditionally the highest pitched 笛子.
3. Piccolo (keyed in C) is equivalent to the G 梆笛, though it tends to be more mellow. Full metal is the closest to 梆笛 timbre, Grenaditte/wood is furthest, and hybrids are somewhere in between.
4. Treble flute (keyed in G) is equivalent to D 曲笛, assuming a foot with 2 additional notes. It also tends to be more mellow.
5. Concert flute (keyed in C) is equivalent to the G 大笛; this does not change even with a B foot. It is on par with the G 新笛, though it is more nimble to play.
6. Flûte d'amour (keyed in A/B♭) is equivalent to the E/F 大笛, assuming a foot with 2 additional notes.
7. Alto flute (keyed in G) is equivalent to the D 大笛, assuming a foot with 2 additional notes. The D 大笛 is quite rarely used in Chinese Orchestras.
8. C 大笛 is traditionally the lowest pitched 笛子.
9. Bass flute (keyed in C) has no equivalent in among the 笛子 family.

No real reason why this is even relevant to anything, but since I was already pondering about it, I think it was better to just put it down so I don't have to think about it again.