sentences:  His work reveals the undeniable influence of his teacher Rimsky-Korsakov, not least in the brilliance of its orchestration, an assessment which was shared by Vītols' friend and fellow composer Alexander Glazunov.During his time in Russia, Vītols became deeply interested in Latvian folklore and conducted the Latvian Choir in Saint Petersburg.His melodies clearly draw upon his heritage, and often directly feature Latvian folk tunes.