drummer:
(plural: ‘drummers‘; pronunciation: the letter ‘u’ rhymes with the letter ‘u’ in the word “but”)

a drummer leading soldiers in a battle
a person who plays a drum, a musical instrument, usually in a music band;
(in American English) a commercial traveller = a person who goes from one town or city to another selling products;
(in Australia & New Zealand) a person who shears a sheep very slowly; the slowest shearer in a team of shearers;
(old usage) a burglar; a housebreaker,

an African drummer playing solo
My friend is a popular jazz drummer, and being with him, I am popular, too.
It’s said that drummers in a music band are very important as they keep the rest of the musicians play in rhythm.
African drummers are known for their best traditional drumming skills which, they say, they received from their ancestors.
Though drummers in the modern armies service only traditional and decorative purposes, the drummers in the past had a very vital role in moving the troops in the battle forward or backward depending on commander’s orders by changing the beat or by beating fast or slow.
In the USA, calling travelling salesmen ‘drummers’ began in the mid-nineteenth century.

a drummer -- an Australian shearer, shearing a sheep
for an article that explains the importance of a drummer in a band, please click here,
and
for an article that explains the probable origin of drummer being used for a travelling salesman, please click here.
For an article that explains what a pc drummer is, please click here.
