Andante and Allegro by Wolfgang Amadeus Mozart, arranged by Merle J. Isaac, is a Grade 2 piece for string orchestra published by Alfred Music as part of the Highland/Etling String Orchestra series. This two-movement work contrasts a graceful Andante with a spirited Allegro, offering young string players an opportunity to explore expressive phrasing and energetic rhythm within a classical framework. The arrangement is accessible yet musically rich, making it ideal for developing ensembles.