In ensemble markings, which indicates two players should play in unison?

• A. A2
• B. Unison
• C. In Octave Doubling
• D. Unison For Both Players

Answer: (A)

Two players on the same part are coordinated with a numeric designation after the part label. The marking A2 means the second player should join the first on the same line, producing unison between the two players. This is the standard shorthand in ensemble parts for two players sharing a staff, because it clearly specifies which player joins in and keeps the part sounding together at the same pitch. If the intention were to have the players sound the same line but an octave apart, the instruction would indicate octave doubling rather than unison. A plain “unison” marking exists, but the numbered form is the common, unambiguous way to denote which player should play the same line.