Piano Forum

Hi everybody ! I'm new on this forum and I like very much. I'm sure there is a lot of things to learn here, since it seems that some of you are teachers. Maybe you could help me a bit.

Sorry for my english, I'm not a native speaker.

I'm currently working on Bach's inventions (one of my favourite composers!). In no 10 G major, there is some trills on bars 20, 21, 22 and 23 for the right hand and on bars 24, 25 for the left hand. I have the edition by Rudolph Steglich (Henle), maybe others editions says something different.

My question is : if you look carefully (those who have the Henle edition), the re is trill on the first beat of bar 20, another on the first beat of bar 21, another on the first beat of bar 22 and another on the first beat of bar 23. So how shall I play it ? I assume I have to interrupt the trill at some moments : this is not a long trill like in Invention no 4 in D minor (from bar 19 to bar 21 for the right hand, from bar 29 to bar 33 for the left hand).

It's something different here in No 10 : Bach rewrites to trill at each bar, so he means that I must interrupt the trill. Am I right ? If so, on which beat shall I interrupt the trill ? I have listened to some recordings : I think Glenn Gould trills only during the first of the bar. I think Koroliov doesn't stop his trill. His trill is the same as in No 4.

What does say your edition ? How would you play this passage ?

Sorry for such a long post.