Brass does not oxidize easily, and a brass towel bar if properly plated will not either.
It really depends on what type of brass bar one is talking about. Brass bars can be used to be made into many things including shower handle bars, coat racks, and other decorative pieces.
A saron is a traditional Indonesian musical instrument made of brass or bronze. It has a series of metal bars suspended over a resonating chamber that are struck with a mallet to produce music. Traditionally, the bars are arranged in a specific scale based on the regional tuning system.
The abacus was an instrument used by Greeks and Romans for arithmetic calculations, preceding the slide-rule and the electronic calculator, and consisted of perforated pebbles sliding on iron bars.
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The Xylophone a percussion instrument that has different bars that you hit with mallets
Chime bars...
chimes
you have to take off your bars an take out the bolts on the clamp then slide it on the bars refit the bars straighten them up then tighten the clamp.
xylophone
A glockenspiel is played upright. The player faces the instrument. It can be carried by a band member in a belt holder as he marches around. A xylophone lies flat. The player stands alongside the instrument.
An xylophone