Igor Levit’s piano recital for the La Jolla Music Society–alternately thrilling, serious, and a bit dour– at the Auditorium at TSRI began with a J. S. Bach transcription and culminated with Ferruccio Busoni’s monumental transcription of Franz Liszt’s grand organ solo, Fantasia and Fugue on “Ad Nos, ad Salutarum Undam.”