Under the title LÂ'Estro Armonico Vivaldi wrote a collection of twelve instrumental concertos. Concerto #1 (originally for four violins, strings and continuo)has been arranged for 2 trumpets and keyboard (piano or organ). All the trademark Vivaldi musical gestures are present in this concerto such as imitative lines, his use of sequences and the writing of solo versus tutti in repeated sections. This edition offers the maximum flexibility with three keyboard scores - in B-flat, C and D. This allows for performance on piccolo trumpets in the key of C or D, or on B-flat trumpet in the key of B-flat.