RecruitingBehavioural interventionEffect of Community Choir Singing in People With Chronic Post-stroke AphasiaThe goal of this randomized controled trial is to test the effects of assigning people with chronic post-stroke aphasia to 12 weekly choir sessions, compared to usual care. The main question it aims to answer is: Does the assignment to a choir singing program causes a beneficial effect on functional communication and language recovery as well as psychosocial outcomes compared to usual care in the rehabilitation of people with chronic post-stroke aphasia? Participants will have: 12 in-person choir-singing sessions (1 session/week, 1,5 h/session, total 18h) conducted by a choir master, and home singing training (3 x 30-minutes-sessions/week, total 18h)