The Concerto is one of the forms of classical music that were established relatively early in Italy. The word comes from the Latin to strive, which encapsulates the concept of rival forces working against each other, whilst combining to deliver a more complex and elaborate whole and a joint resolution. This conversation between solo or lead instruments and the rest of the orchestra have fascinated composers, musicians and audiences alike ever since. For a fuller technical exposition you might try the Wikipedia Concertos page.We had not expected to be able to make percussion arrangements of these works until we discovered that the Steel Drums were able to take on rhythmic string parts and show them off to good effect. Sometimes we have used the Marimba to take on the lead. In the case of the Mendelssohn piano transcription the Mega Moog synthesizer provided depth in the bass and heightened the drama but we have generally relied on the Marimba to cover the cello and bass parts.