What are the sonata allegro, themes and variations,minuet and trio, rondo different forms of ?
classical, era, symphony, haydn
Sonata allegro, themes and variation, minuet and trio and roto are all different types of musical forms. All these musical forms are categorized under the sectional form of music. See http://en.wikipedia.org/wiki/Musical_form#Sectional_form for more details on music forms.