The Budapest Music Weeks. a shop window for new Hungarian works in particular, included this year a Ligeti concert of Hungarian premieres, ensembles from Cuba, Italy, East Germany and Lithu ania , a Zoltan Kocsis recital of excerpts from Gyorgy Kurtag 's Plays and Games, and recent music bv a dozen other Hungarian composers. Dominic Gill reports in the first of two pro-programmes.