Group of strings of a musical instrument which are tuned to the same pitch and played as one string. Lutes, guitars, and mandolins have double courses, harpsichords have triple courses, and pianos range from heavy single courses in the bass to quadruple courses in the extreme treble. The 12-string guitar is a modern example of a double-course instrument, each pair tuned to the octave rather than to the unison.
While the original purpose of doubling of strings may have been to increase loudness, an additional factor is improved liveliness of tone caused by beat interference of near-unison strings, an important factor in the tuning of a modern concert grand piano.

A circumscribed area of land or water laid out for a sport.

ETYM French cours, course, Latin cursus, from currere to run. Related to Current.
(Homonym: coarse).
1. A mode of action.
2. General line of orientation; SYN. trend.
3. Part of a meal served at one time.
4. Education imparted in a series of lessons or class meetings; SYN. course of study, course of instruction, class.
5. A layer of masonry; SYN. row.
6. A connected series of events or actions or developments; or; SYN. line.

A part of a meal served at one time.

1. To run as in a race, or in hunting; to pursue the sport of coursing.
2. To move with speed; to race.