For artists spring is a time to sharpen skills as well as tools, according to the arts division of the Maryland-National Park and Planning Commission. The commission is sponsoring a series of workshops on a wide range of arts topics.

On Saturday, the arts division, in cooperation with the University of Maryland's department of arts and humanities, will offer a one-day workshop entitled "Career Building in the Arts." Funded by a National Endowment for the Arts (NEA) grant, the workshop is aimed at improving the ability of performing and visuals artists to market their talents and their works.

Patrick Hayes, managing director of the Washington Performing Arts Society, will open the workshop with a keynote address entitled "Careers in the Arts: Joy or Madness?" Other speakers include Virginia Freeman, movement specialist for Arena Stage and Folger Theatre; Nancy McIntosh, co-owner and director of Protetch-McIntosh Galleries of Washington and New York; Christopher Cade, executive director of C3 Associates, an artists' agency in New York; Margaret Daiss, director of placement at the Maryland Institute College of Art; and Vantile Whitfield, director of NEA's Expansion Arts Program.

Topics to be covered include audition and interview techniques, presentation of portfolios, development of resumes, performer-agent relationships, establishment of a performing companies and cooperative galleries and arts opportunities in the public sector.

The workshop will be held at Tawes Fine Arts Building at the University of Maryland in College Park and is open to anyone in the Washington area. Registration fee for the day is $2.50. For further information call Louise Kyanko at 277-2200, extension 395, or 459-6007.

On April 29 the arts division, with the Institute for Urban Studies, will sponsor an all-day workshop entitled "Not by Bread Alone: A Seminar on Arts Fundraising, Promotions and Audience Building." Also supported by NEA funds, the workshop will address management concerns in the arts and focus on arts groups rather than the individual artist.

Conducting the workshop, which will be held at the University of Maryland, will be Alvin Reiss, author of several books on arts management and director of the Performing Arts Management Institute in New York. For further information call the arts division at 277-2200.

On April 8 the National Players will offer theater workshops at Bladensburg's Publick Playhouse in conjunction with its performances there April 6-8. A Maryland Arts Council grant funds both the workshops and the performances by the National Players, which is Catholic University's touring company. The Playhouse appearances will mark the first public presentation in the Washington area by the 29-year-old company, which travels in this country and abroad.

According to the Playhouse director, Doug Herbert, the workshops will focus on acting and directing and were planned to give community artists and drama students the opportunity to work with professionals. Registration fee for the workshop is $2.20. For more information call 277-1710.

On April 9 the arts division will offer the last in a series of three master dance classes at the University of Maryland's dance department. Yuli Vzorov, 1972 winner of the Soviet Union's laureate medal for choreography, will be teaching classes for beginner-intermediate and intermediate-advanced dancers. An immigrant to this country three years ago, Vzorov is director of the Bolshoi School of Ballet in Bethesda.

Supported by a Maryland Arts Council grant the workshop offers dancers of all levels the chance to work with a professional. According to Nadine Bernard, dance specialist for the arts division, age of participants in the two previous master classes ranged from 12 to 50 and ability from beginners with a minor interest in dance to working professionals. Registration fee is $4 for the public, $2 for University of Maryland students. For more information call Nadine Bernard at 277-2200, extension 397.

On May 13 a workshop on choral accompanying will be held as part of Choral Day, an all-day event being sponsored by the arts division and Dimensions of Music at the Queen Anne Auditorium of Prince George's Community College. Paul Traver of the University of Maryland will open the event with the address entitled "Elements of Audience Building."

Performances by 11 Prince George's County choral groups will follow. Included will be a performance of Carl Orff's "Carmina Burana" by the Laurel Oratorio Society and a presentation in traditional costume by the choir and band of the Trinity Moravian Church in Lanham. The day will culminate in the accompanists' workshop which will be given by Mark Tardue, conductor of the Laurel Oratorio Society.

Both the workshop and the choral performances are free and open to the public. For further information call Judy Spangler at 277-2200.

Violinists are still needed for the National Opera Orchestra Workshop. It will be held at the University of Maryland June 19 through July 15 and is sponsored by the Maryland Summer Institute for the Creative and Performing Arts. Applicants should be young musicians of professional quality who are about to enter a career in music. For further information call George Moquin at 45