RecruitingBehavioural interventionDrumming Lessons' Influence on Children With Down SyndromeThe goal of this clinical trial is to learn if drumming lessons can increase self-control in children with Down syndrome. The main question it aims to answer is whether 2 months of drumming lessons can improve the behavioral control and timing skills in children with Down syndrome. Participants are between 7 and 15 years of age and receive two months of drumming lessons given by a professional drummer with extensive experience working with children with Down syndrome. Children in the experimental group visit our lab once before lessons start and once after lessons are completed. Children in the control group visit our lab twice before they start their lessons. Lab visits include brain recordings taken using a net-style cap, computer tasks, and drumming to music.