Sounds like wheel bearings.
No, they respond to the person making the music swaying back and forth
If it is rear-drive, suspect a bad universal joint, differential, or transmission connection. If it is front drive, with a rear axle brake, this could be broken or mis-engaging. Swaying seems to indicate a faulty connection with the rear axle. It could actually have been broken at one wheel connection, but very shortly the wheel would have fallen off.
Probably
A pendulum swinging, a see-saw moving up and down, and a rocking chair swaying back and forth are examples of things that go back and forth.
of Rock, Having a swaying, rolling, or back-and-forth movement; used for rocking.
The real question is 'why not?'(:
Rock to sleep is a term used when you are holding someone or something in your arms and swaying it back and forth gently till it falls to sleep. For example you could rock a baby to sleep in your arms or a small animal/pet.
The Tagalog word for "kuyakoy" is "kuyakot," which means to sway back and forth or gently shake.
Chameleons move back and forth to navigate their environment, search for food, and communicate with other chameleons. This swaying motion helps them blend in with their surroundings and stay balanced while climbing or walking.
theres is to many things that could becausing it, so its hard to tell. the best thing to do is jack both front teires off the ground and try to wiggle the tires back and forth, there should be no play (or movement).
the motor is bad and the entire track and all must be replaced as a unit.
It's where you move your teeth back and forth, grinding away the enamel that protects your teeth from harm. Some people have a problem with stress management, bite alignment or have a malformed jaw that can increase the probability of experiencing grinding of teeth, during the day or in sleep.