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Why are bridle straps needed? Sebastian Erard introduced double repetition mechanism in the grand piano in 1821, and "=" Robert Wornum - the "tape check" mechanism in upright piano in 1842. Robert Wornum constructed your the first upright piano in 1811. They were there before J. Hawkins about 1800 and J. Schmidt in 1780 - those upright pianos and the first Wornum's piano (1811) didn't have it yet of bridle straps (tape check) just as old grand piano in 18th and some oldest in 19th centuries didn't have double repetition too. "(...)The value of this tape lies mainly in the slight extra pull it manages to impart to the hammer butt when the hammer rebounds from the string, and after the back check has caught the hammer and been released by the release of the key. The tape would not have any special. value but for the fact that the hammer, having' been caught by the back check, naturally would hang a little on the release thereof, if it did not receive the gentle pull caused by the fall of the wippen with which the bridle tape connects it. The tape is, in fact, to the upright action what the repetition lever is to the grand. Until these two features had been devised and applied to their corresponding actions, the piano was an extremely imperfect instrument." The upright piano from 1842 year and after "(...) owes its present touch effect to the tape just as the touch delicacy of the grand is due to the repetition lever. Of course the grand action is the mor~ delicate and responsive of the two, for it possesses the double repetition. This the upright cannot have, not to mention the fact that the fall of the hammer through gravity is of course far more effective than its retraction by springs. The upright action blocks more easily than does the grand, and finger movement must be higher to secure repetition." The second function of bridle straps is "(...)to keep the levers up, and to prevent the jacks getting caught beneath the notches, when the action is removed from the piano and replaced."

Thanks!

Thanks David!

Happy New Year Artisan!

Baby grand is my next dream?

Happy New Year to you all too thanks for all your help!

Happy New Year Stacey, David, Kathy, and the rest of the Artisan team. Best wishes for 2025 from Midwest Piano in Indiana!!

Happy new year!

Never glue both sides except for contact glue.

Ha-I just aligned a couple dozen 110yo hammers using a hair straightener :-)

Nice discussion here! What a great resource

Hammer Head softner sold by Schaff Piano Supply will do wonders.

This is very interesting. Learned a lot. Loved the punchings on the rail pins ;). Could use more explanation of the Erwin tool as used on the white keys and for setting after touch. I definitely want to learn more about your offerings at Artisan pianos. I also recommend this video in the Irwin tool. It covers key dip and after-touch with the one tool. ruclips.net/video/vEW-lTxwtng/видео.htmlsi=y3NyPUbMx8RdgKNh

Thanks for this! The stream wasn’t great but it didn’t disturb the lesson. By the way, I’ve had good results pushing another needle in, really close to the broken one. The new needle can force the other one out.

This one is unfortunately tough to follow because of the breakups and low video quality. Slow internet that day I guess... :-( Thanks tho-voicing vids much appreciated.

Thanks . Enjoyed the video. I’ve tried both ways of doing this repair .I’ve never removed the rest rail before Maybe on another one video show how to replace damper springs in an upright piano ?

Screws in an upright : Damper Lever Screw Hammer Flange Screws Whippen Screws Sticker Screws 88 * 4 = 352 * 5 seconds 1,760 / 60 (29-30 minutes) Bracket Screws 4

Thanks David!😉😉

Thank u

Question please,; When checking/ setting back check will the measurement change according to how hard I strike the key? I did see I have to watch not to introduce after touch cuz it will move closer if I push it down too hard after the key was already struck........ Thank you..

I just used a coat hanger wire with about a 1/4" "L " at the bottom, to adjust the let off. The let off adjusting screws were the eye hook style.

So I set my blow distance and adjusted my lost motion, and set my let off to about 1/8". I made a 1/8" gauge from plastic and refrigerator magnets and carpet tape. Some of the let off was as far as a quarter inch to 3/8". However I don't see much of a difference to where it's easier to play or anything. The only thing I didn't do was set the back check. I didn't measure the back check but they appear to be anywhere from 3/4 of an inch to one inch. (I understand I am looking for about 5/8 of an inch) I am a little bit apprehensive to set the back checking because you have to bend those wires to adjust it and I'm worried about getting it even. But if I adjust my back check, will that make it any easier to play? I am looking for good repetitive key motion also.

That’s pretty advanced. Not much info on the channel. Is this a piano store? Do u do service calls? So u work with classic piano Portland ?

My experience: Shoe shine method of removing string grooves on the hammer is quick and goes a long way to improve tone, and will last longer than needling. You dont necessarily need to do a 3 hour complete hammer reshaping. Just remove the grooves (even if the hammer shape isn't optimal), spend 20-30 mins and the tone will drastically improve even without needling. At that point you can still needle to get even better results, that will last even longer now.

Del?? Is that Delmark Goldfarb by chance?

Sorry if this got posted twice. Do you all think this is too much lost motion? ruclips.net/user/shortsK_FYkl_ZJ9o?si=QhmCz0dKR019_kiL

Just discovered this video. Very good and helpful info!

I am not understanding how this is done with one mute. Can you explain. Looks very efficient

440 subs ;)

Thanks!😉

I compare pianos to cars for my clients, explaining how a car can have a ton of problems, yet still get you from A to B, tho it won't be a pleasant drive. Their piano might play in some sense of the word, but it could be much more "pleasant"...

I'm seeing different opinions on blow distance. You say 1.875 (48 mm). Reblitz gives that for grands, but gives 39-45 mm for uprights... What's the scoop?

Incredibly helpful video! Just discovered your channel, no idea why there are less than 500 subs??? I was expecting these types of videos to explode, this is awesome information and very excited to dive into the other hour-long videos, especially the hands-on videos!

From a business perspective, I think tuner should know a few things about the piano they are to tune, including the last time it was tuned among other things. This would let you know if its just a regular tuning you are up for or with a pitch correction. Also, you would be able to value your time and convert that to a fee which you would have discussed ahead. Getting to a piano before knowing that you are going to spend more time than expectedly plan would be self defeating and you might not be able to take the client up on that. I also understand that, it all depends on your approach .

Darn, I really want to try one of those mutes! I hope he sells them at some point soon

My favorite parting shot is to lubricate the squeaking screen door. LOL

Thumbnail has a typo. FYI. Thanks for the videos

What is the diameter of the yarn, 1mm or 2mm, thank

Awesome! Where do people get the upright and grand piano action models that's don't cost a billion bucks? lol

Interesting video - thank you

I've been searching for days about the proper tension of the repetition spring, and I finally found a great explanation. Thanks David 😅 35:28

Thanks for the helpful info, I have a "4 foot nothing" grand of my own that I've been working on. Haha!

Great😊

what a hysterical adhd young man with his electronic toys without any knowledge of the matter

Thanks!

I was hoping you would explain how you use the single rubber wedge mute. I think I can imagine how you do it, but perhaps you could explain?

Do you always start from AO and go from bottom to top with an ETD ? Aurally you would set the temperament octave first, mid range and either bass or top octaves .

wow you charge 195 for a tuning - where do you live that you get that price? I would be out of business if I charge that for a tuning for an hour or less of work.

Shigeru Kawai is not "High End? Really?

Thank you for this excellent video. Just a question about angel shot voicing: I couldn't tell from the video if, when you're inserting the needles, you are going in jut before the strike point on the "close" side of the hammer, or if you're inserting them on the far side of the strike point. Thanks again!