Piano Definition and 78 Threads

My only realistic experience was with string instruments with fingerboards. Coordination between or with left and right hands was never a problem, at least for me. Plenty of piano students and piano players seem to demonstratably not have trouble with coordination of the hands either, but I do...

I am trying to determine tradeoffs in how piano keys are weighted. Piano hammer weight and the behavior of the mechanical parts in a piano action yields a spread of roughly 5:1 in leverage - every gram of weight added to the hammer adds roughly five grams at the key. Piano keys (the wooden...

Albeit the simple question, I am a bit confused on whether the correct answer choice is (B) or (C). When the piano is slowing down, shouldn't the force received by the piano be a bit greater than the force received by the man?

This is a demonstration on what he there calls a Graphene piano. I DO NOT BELIEVE THIS, in all honesty; unless someone here can instruct me differently:

I have an old piano keybed I am trying to turn into a midi controller for a synthesizer. The keybed has 32 keys and is just a matrix of diodes and buttons. There are 2 buttons per key (2 buttons per note pressed on the piano). This is for MIDI velocity, ordinarily the time between the two...

I enjoy music and have acquired a certain level of relative pitch. That is, I attempt to be able to identify musical intervals and chords such that I can play along with the music that I'm listening to. The guitar is a good instrument for me because of its simple layout . However, piano has...

angular frequency= 50 rad/s= 2*pi*frequency frequency= 7.96 Hz k=2*pi/wavelength k=2*pi/(2*1.6m) = 1.96 velocity=angular frequency/ k velocity=50/ 1.96 = 25.5 m/s For some reason this velocity is wrong

Homework Statement Movers must push a piano onto a truck, the bed of which is a height 1.35 m above the ground. To do this they will use a frictionless ramp. If the piano has a mass of 1806.0 kg and the movers push it up the slope at a constant velocity, how much work do they need to do on it...

In a physics articles and texts they say You don't perform a work when carrying a heavy object over a long corridor or if you are carrying a piano on your back down a hallway, you are not actually doing any real work But why? Since you're using force and energy to move an object with mass...

so if a= elevens and b= twelves, the number of hours for elevens are C(a,a-2) times 2, and the number of hours for twelves are C(b,b-2) times 4. I don't know where to go from here

I'd like of know from where originated the funcion f(n) presented in this page (https://en.wikipedia.org/wiki/Piano_key_frequencies)!? Probably, f(n), is the solution of some differential equation and I'd like of understand how this diff equation was architected. If someone can answer this...

Two doubts: First, when the hammer hits any string, the string begins to vibrate, until here, no problems, but, the vibration decays over time and this decay is linear, exponential or assume another form? Second, when the hammer hits a string and the string begins to vibrate, it vibrates in...

You have a piano that you have just pushed to the top of the 3m long ramp that goes into the truck. The ramp is at a 20-degree angle. You think your friend has a grip on it and she think you do when you all let go. How long do you have before the piano gets to the bottom of the ramp? Assume...

Hello all, I am a live sound engineer looking for a creative way to slow down the dampers on a grand piano as the pedal is released. When the piano pedal is depressed, the dampers lift off of the strings, and when the pedal is released, the dampers come back down on the strings to mute them...

I am a computer programmer, mostly in Windows, but a little bit into open source, Linux and Java. I work a lot in javascript and SQL of one kind or another, both of which are utilized somehow via all common platforms. I am also interested in music, physics, and chemistry. I play piano and...

I'd like to setup an Excel spreadsheet to demonstrate the expected change in string frequency due to small changes in temperature. How should I go about doing this? This is the data from the piano that I can gather: -string length -string diameter -string area -string/partial frequency How do...

Hello! I have a question about grand piano action design. As a quick primer, the way a piano works is basically that each key is a lever mounted on a fulcrum, so when a player presses a key, the other end of that lever rises. A hammer is attached to the other end of the key, and when that end...

Hi everyone. I have a question on the role of piano in choral music. Piano seems to be the "default" instrument for accompaniment in many choral works. May I know why is piano the "preferred" instrument? Thanks!

Even if this performance was "staged", it was pretty good:

Homework Statement Middle C on a finely tuned piano vibrates 262 times per second. What is the period of the wave? Homework Equations T =1/f The Attempt at a Solution Im just really confused.

Homework Statement Two men loading a 900 kg piano onto a truck lose control and the piano slips, rolling down the loading ramp. The ramp is a 12 degree incline that is 3.2m long. If the piano accelerates down the ramp at 0.4m/s^2, find the coefficient of rolling friction. Homework...

Solved it! Nope. -- Piano slipping down a ramp Homework Statement Two men loading a 900 kg piano onto a truck lose control and the piano slips, rolling down the loading ramp. The ramp is a 12 degree incline that is 3.2 m long. How long does it take the piano to reach the bottom of the ramp...

I want to learn something new. Something that takes time to accomplish and that would 'enrich' me somehow. I thought about learning programming or learning playing the piano. I tried both at a very elementary level and find them both fascinating, but only would have the time (and energy!) for...

I recently started taking piano lessons. I have been wanting to for a long time, but school always got in the way. Now I have all of the time in the world to practice. I have been taking lessons for about a month now and I am really enjoying it. I have played music (flute, french horn, cello...

I would like to build an electro magnet capable of causing piano strings to vibrate without the strings being struck first. As long as the hammers are up, the strings would vibrate on their own accord. An E-bow, used by guitarist for the same purpose, will (sort of) work on a limited range on...

Power to lift* a piano A piano of mass 200 kg is lifted vertically by a 0.5 hp motor. Given that 746 watt = 1 hp, how long will it take the motor to lift the piano to an apartment that is 20 m above the ground? Not really sure how to start this question, so any explanation would be greatly...

Homework Statement Three movers are applying forces F1 = 100 N [W20°N], F2 = 200 N [E40°S], and F3 = 300 N [S] on a 300-kg grand piano. If μK for the piano is 0.10, determine a) the net force acting on the piano b) the acceleration of the piano The Attempt at a Solution I got...

Would it be best to unscrew everything first or just smash it to pieces?

Hello, I'm not sure if this is the right place to write this thread, but I have a question about attempting to synthesize a piano in MATLAB. I am very new to MATLAB and DSP in general and my project is trying to create a piano sound using whatever means (FM synthesis, additive synthesis...

I'm working on the mathematically modeled piano synthesizer. Right now I'm using modal based approach, where the sound is formed by a sum of exponentially decaying sinusoids (harmonics). Right now I can calculate frequencies of sinusoids (taking inharmonicity into account, of course). For...

hey I am just curious does anyone play the pina i really have a few questions ??thank you

Hi All I am the new at the forum and would be very grateful for help about my Lab. I am doing the postgraduate course of Biomedical Engineering. We had a Lab about the fatigue of piano wire, as a part of materials science module. During the experiment, high strength piano wire was tested by...

A 330-kg piano slides 3.6 m down a 28º incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is 0.40 what is the work done by the normal force? If someone could let know how to find FN, would it...

can anyone show me the solution in this problem: A 1,000-N piano is moved 20 meters across a floor by a horizontal force of 350 N. Find the coefficient of friction.

Homework Statement Ok so a piano tuner plays an out of tune A note on his piano and then strikes his 440 hz tuning fork. He notices a beat of 2 Hz. When he loosens the piano string and plays the note again, the beat goes to 4 hz. What was the frequency of the note before he loosened the...

I am doing a research essay in high school on researching the nonlinearity of piano hammers, but I am stuck on planning the experiment. Basically my topic is like this paper http://paws.kettering.edu/~drussell/Publications/pianohammer.pdf. However, since I am only in high school, I have trouble...

The two ropes seen in Figure Ex11.9 are used to lower a 235 kg piano 5.5 m from a second-story window to the ground. How much work is done by each of the three forces? (T1 = 1820 N andT2 = 1110 N) t1 is 45degrees north of east t2 is 60degrees north of west w = J T1 = J...

In raising a 51 kg piano with a pulley system, workers note that for every 2m of rope pulled down, the piano rises only 0.2m . Ideally, how much force is required to lift the piano? I know the answer is 50 N because it's on my review sheet for a test, but I don't know how it was found. Could...

Homework Statement A man pushes on a piano with mass 190 {\rm kg} so that it slides at constant velocity down a ramp that is inclined at 15.8^\circ above the horizontal floor. Neglect any friction acting on the piano. Calculate the magnitude of the force applied by the man if he pushes...

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Homework Statement The two ropes are used to lower a 244.37 kg piano 9.47 m from a second-story window to the ground. How much work is done by gravity force? (T1=1805 N, q1=64°, T2=1112 N, q2=44°.) How much work is done by T1 force? How much work is done by T2 force? Homework Equations...

Homework Statement A steel wire in a piano has a length of 56.8 cm and a mass of 5.0 g. To what tension must this wire be stretched in order that the fundamental vibration correspond to the note of middle C (f = 261.6 Hz)? Homework Equations u*(f2L)^2 = F The Attempt at a...

Homework Statement This is more of a general question: In what ways (besides mechanical), can physics be applied to Pianos? I'm already onto strings and energy, but are there any other ways? Homework Equations The Attempt at a Solution

Homework Statement The two ropes are used to lower a 267.18 kg piano 5.34 m from a second-story window to the ground. How much work is done by gravity force? (T1=1864 N, θ1=64°, T2=1231 N, θ2=50°.) How much work is done by T1 force? How much work is done by T2 force? Homework Equations...

I was thinking that it's possible to make a sort of "piano" using solenoids. If you had a spring to reset it, and the "keys" of the "piano" activated simple contact switches, it could be done, right? It wouldn't be a terrible strain on the batteries if the contact were as short as pressing...

Hello everyone! I have an old Fender Rhodes electric piano I am rebuilding and I have a question. It uses a stereo pan circuit which pans the signal back and forth between the left and right amplifiers. It does this with a simple oscillator circuit that drives two 2N3053 transistors (now...

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Question: On a piano, middle C's 260 Hz. What mass is needed then to suspend from a hanger for resonance at 260 Hz for your string (in the absence of a tuning fork)? Is this sensible? Given: mstring = 0.0003 kg Lstring = 1.809 m (entire length of string) L = 1.370 m (length between fixed...

Ok, I need some help settling another piano tuner argument. When a piano string breaks and is replaced with a new one, it takes many tunings until it becomes stable. It can be brought to the correct pitch, and will seem to stay there, but in a few days it has dropped in pitch drastically...