Practice combination of conctact point + bow pressure + bow speed?
important for a beautiful tone production (not thin, not scratching etc.) is theoretically an ideal combination of bow /string contact point (between bridge and fingerboard, recently learned that there are 5 possible contact points possible), bow pressure and bow speed.. the 3 variables are dependent on each other (maybe also depending on each of the 4 strings with different characters and even (higher / lower positions..) so a quite complex thing to study!
I haven't seen so far any good teaching concept how to practice (test, experiment, feel etc.) this, especially the correct combination of the three variables per string...
How do you practice it? Do you know pieces & daily excercises? How to check if it is correct?
The "5 contact points" are only selections from a continuum of possible "sounding points." By selecting "the 5" you will get some idea of what they sound like on your instrument and the extremes of bow speed and"pressure" each can take.
I can only say that using gut strings makes me much more aware of:
Bow angle (amount of hair used) and arm angle are other variables. I think we experiment with bowing either using some pre-established rules we learned in lessons or trying everything and thinking outside the box. Some pre-established rules I can think of in no particular order are:
As others have mentioned, there really isn't so much a "right and wrong" way to combine these variables, but rather depending on the musical passage in question a range of choices, where some may sound better or worse depending on what tone color or dynamic level is desired.
Simon Fischer's "Tone" book covers the ground very suucinstly.
Is there a book now? I can't find it. (I'm familiar with the DVDs.)
His recent books are available on his website. "Tone" is a slim volume.
The tone book is good. Really, all of his books are great:)
Break them up and practice in parts. Just like everything else. Gradually put them together.
Julia, this is in the book Basics (by Simon Fischer) along with many other essentials. Yes there is also a separate booklet by Fischer "Tone: Experimenting with Proportions" but I wouldn't call that succinct, it is mainly an elaboration and fully written-out sets of what is already presented succinctly in the Basics book, which you need anyway.
Yes, but you can tuck Tone into the music pocket of you case without busting the zip!