Guitarists in pleasing showBy DONNA LANGE Self-taught artists are somehow always more im* pressive than those who've been taught.Los Indios Tabajaras — Mussapere and Herun-dy. two amiable South American guitarists, the third and fourth sons of a Tabajaras tribe (there are 34 in their family in a reniote section of Brazil — are self-taught musicians who apparently pleased members of the Monongahela Valley Music Association (MVMA1 who crowded into Charleroi Area High's auditorium last night for the second concert of thisyear’s MVMA season.The two taught themselves guitar after finding One in a Brazilian jungle. Migrating to Rio de Janeiro they continued to study and practice soon gaining popularity in Latin America. Their fame spread when they discovered America nd hit the record Charts with “Maria Elena. selling over a million copies. This shot them to stardom and a recording Contract with RCA Victor. In the past three years they’ve plaved hundreds of concerts all over the United Static, including the Pittsburgh areaTheir musical program included Latin Amencan songs, pop” hits and classical numbers with a style distinguished by unique ornamentation, greatSee GUITARtSTS—Page 3