Letro armoinco OP.3 No.9 concerto for two violins in D major Letro armoinco OP.3 No.8 concerto for two violins in A minor aLetro armoinco Op.3 No.9 concerto for two violins in d major（《和谐的灵感》作品3第9首，D大调双小提琴协奏曲） Letro armoinco Op.3 No.8 concerto for two violins in a minor（《和谐的灵感》作品3第8首，A小调双小提琴协奏曲） Allegro from concert for 2 mandolins in G major Concerto for 3 violins in D major Concerto for Two violins in D minor Coneerto for two violins in D minor