noun Jazz, Popular Music.
a roughly outlined musical arrangement that is played from memory and is often learned by ear.
Origin of head arrangement
First recorded in 1945–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for head arrangement
jazz a spontaneous orchestration
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012