Charlotte W. Cleary, Arlington's new registrar of voters, has announced that registrars will be available four days in September and October to go to the homes of people who have been disabled or sick for at least 30 days to register them to vote.

Forms requesting such visits may be obtained by writing the registrar at the courthouse, 1400 N. Court House Rd., Arlington, 22201, or by calling the registrar's office at 558-2345, on weekdays from 8 a.m. to 5 p.m.

The form must be received in the registrar's office five days before whichever of the four scheduled days a citizen selects for the home visit. The dates are Sept. 10, 18 and 26 and Oct. 4. March Contest

Fairfax City music aficionados recently selected an Arlington County composer as the winner of the city's march competition.

Virginia Wayland, who received $500 for writing the winning composition, said it took her one day to create the sprightly melody, which will be played by the City of Fairfax Band at all future city functions.

Wayland said she has composed "thousands of songs in my day," but the city's march competition was the first music contest she hasa entered.

Wayland's 3 1/2-minute winning number was chosen from among 21 compositions, which, according to the rules, had to be less than four minutes long, traditional, "appropriate for use by street bands" and previously unpublished.

The Pasadena, Calif., native said she began composing melodies when she was 6 years old and continued to write college musicals at Pomona College in Claremont, Calif.

The contest was sponsored by the city's Commission on the Arts.