Quote:
Originally posted by Cornvalley
LTA,
Yes I believe that is true. I was reffering to the the sympathetic notes adjacent to the the middle string. I believe those are to be in unison. |
In that statement, i was referring to the single note that has 2 or 3 strings. The hammer hits all of them, so they aren't really sympathetic strings. The period of the beats was more than a few seconds, but he was consciously making it happen. It was probably only a portion of a cent difference, but he got the "sharp" string to beat against the middle string as quickly as the "flat" string did, on a single key. As an unexact example, A5 (which i'm pretty sure is an unwrapped trio) might have a "target" pitch of 882 Hz from the stretch tuning. Just guessing, the pitches of the 3 strings might end up being 882, 881.9, and 882.1. Each "mistuned" string would beat at about .1 Hz against the center frequency. Tune the string till the period of the beating is about 10 seconds. I'm not a piano tuner, and the above is just for the sake of illustration.
Also, i believe "regulation" refers to the action of the keys. While regulating a piano, the action is slid out of the piano, and everything gets tweaked to be even from key to key. I think it may even involve the sanding of the hammer felts to soften them up and to control how the hammer hits the strings (although that may be a separate process).