Piano World Home Page Forums Our Most Popular Forums Piano Tuner-Technicians Forum What is the fourth pedal function? (iima)

I have heard of a piano having a fourth foot pedal and I am curious about its function (and history). I asked this question in the piano forum and didnt get a reply so figured you guys would know.

My baseline is:
Right pedal = "sustain"= dampers held back so all strings vibrate
Middle Pedal = "selective sustain"= dampers held back for only those strings struck just before pedal depressed
LeftPedal = "soft" = hammer travel reduced or offset for softer impact or fewer strings struck.

Fourth Pedal = ? = (your input here, please and thanks)

Any piano have MORE than four pedals?

Earliest occurance of this feature?

The reason four pedals are not more common is Price ? (hard to manufacture) or just too idiosyncratic?

Extra comment: I enjoy this website a great deal and learn a lot from it. Some of the PICTURES of the rebuilds are strikingly beautiful. (I'm obviously NOT a tuner or technician, but I hope you don't feel I'm trespassing)

Thanks,
Bob

[ August 18, 2001: Message edited by: RKVS1 ]

[ August 18, 2001: Message edited by: RKVS1 ]

I don't own a piano with four pedals, but I've seen a piano with four pedals. On the piano that I saw, one pedal was for sustaining, one was for piano soft (the two normal pedals), and the two extras: one was for an automatic trill, and the other was to give the piano a harpsicord sound.

An automatic trill triggered by a pedal??? I'm having a hard time visualizing how that would work???? Was it a player piano???

No. Not a player, and I have absolutley no idea how such a thing works.

I have seen and worked on over 20,000 pianos in my career, and I have seen one(1)
piano with 4 pedals. The forth pedal was some sort of tone altering attachment that modified the tone into a "Honkey Tonk" or harpsicord sound. Any american pianos with more than 3 pedals were made in the 19'teens
or earlier, and were probably just there to give the piano salseman something to do..
Aesthetically they were a non-starter.

Historically, early pianos were built with differing numbers of pedals with various functions, including the insertion of parchment between the strings & hammers, and a bell device.

In the case of the Fazioli, the fourth pedal simply moves the hammers closer to the strings, like in a vertical piano.

I own the "Crown" uprigt piano, 146, with four pedals.The two work like usual, third works to place moderator felts between hammers and strings,and fourth gives the "Honkey-Tonk" effect.

Ivars

....and that's all that ever was to it...
....that's all folks.......keep playing...

[and don't let those damn pedals get in your
way.......]

The Australian made Stuart& Sons 9'6" grand has a fourth pedal which raises the hammers nearer the strings and reduces the touch depth. This enables the player to play very softly (and rapidly, if necessary)still
employing the full tone of the instrument.
It can be also used with the 'shift' pedal for even more effect.