Pedal trill?

[pb05]

Hello, I need some advice about executing trills in the pedals. Actually, I have noticed that I am completely unable to perform any kind of such a trill, with the exception of the quite elementary mordent and this with difficulty. I try to start moving the feet very slowly but I cannot keep accelerating.

Is that normal? What/how should I try?

[Krummhorn]

I've always been successful just pivoting the ankles for pedal trills. Takes a bit of practice ... the Stainer and Gleason method books cover this (I learned the Gleason method) - agreed though, it isn't easy.

[pb05]

Thanks Krummhorn. My case is really strange. I am seemingly healthy and capable to make (relatively) fast movements with the feet when playing the pedals, but not repetitive ones like in a trill. This makes me think that I probably "suffer" from some weakness of the nervous system that never had the opportunity to show up until today. What do you think?

Also, could you be more detailed about the methods you mention?