Rotary Trumpet - Vienna Klappen

[MultiBrass]

Hi different makes/models seem to have 1, 2, or 3 water keys / klappen.

Im wondering why this is? Is it just cost? Can you do without all 3 or do they make a REAL difference (esp for a novice).
_________________
Cheers,
Chris

[abontrumpet]

One of the keys is always generally there (the "water key" which nobody really uses for water). That affects the arpeggio Bb, D, F (above the staff).

From there, it just depends on your preference. For principal C trumpet work, having the key that affects A/C# and the key that affects C are very useful (which means you end up with all 3).

For a novice, it really isn't that big of a deal if you don't plan on doing it at a very high level. But at least 2 are nice and if I had to chose I'd probably go with the "high C" key as it has the most obvious effect, for me. Given that you're in the UK, and likely playing Bb, just the one key is more than sufficient for Bb trumpets.

Edit: Adding that I have 3 keys on my Schagerl C and only the 1 on my Schagerl Bb

[Brassnose]

https://www.martin-schmidt-potsdam.de/wp-content/uploads/ventholes.pdf

They also require practice and add some weight but I am no authority because my rotary does not have any additional keys other than the long water key.
_________________
2019 Martin Schmidt eXcellence
1992 Bach 43GH/43
1989 Kühnl & Hoyer Model 15 flugel
1980/2023 Custom Blessing Scholastic C 😎
1977 Conn 6B
1951 Buescher 400 Lightweight
AR Resonance, Frate, Klier

[Brassnose]

Just remembered: besides the D, A, C, there is also the H-Klappe, for those looking for an additional challenge

http://www.dowids.de/index.php?inh=bildanzextras&binh=06_3_kl_gr

H is B natural in German.
_________________
2019 Martin Schmidt eXcellence
1992 Bach 43GH/43
1989 Kühnl & Hoyer Model 15 flugel
1980/2023 Custom Blessing Scholastic C 😎
1977 Conn 6B
1951 Buescher 400 Lightweight
AR Resonance, Frate, Klier

[oxleyk]

Link