A musical combo is a group of musicians playing together. The most common types of musical combos are CHORD (5 letters), BAND (4 letters), sextet (6 letters), TRIO (4 letters), OCTET (5 letters), and string orchestra (15 letters). A CHORD is a combination of three or more notes played simultaneously. A BAND is a group of musicians playing instruments such as guitars, drums, and keyboards. A sextet is a group of six musicians playing together. A TRIO is a group of three musicians playing together. An OCTET is a group of eight musicians playing together. A string orchestra is a large ensemble of musicians playing stringed instruments such as violins, violas, cellos, and basses.