Connor Whelan, 19, is a musician from Brooklyn who has taken it upon himself to organize a concert to benefit the Sisters of St. Joseph of Brentwood, L.I. The gig will feature other local musicians, including Gypsy Trane, Steven Vaughn, Nicki Marone and Maribeth Dono and the Immaculate Heart of Mary (IHM) Choir. A varied set list from different genres and styles of music, it should be a fun and enjoyable hour of “Music In The Afternoon,” April 19, 2 p.m. at IHM Church, Windsor Terrace. Tickets are available at the rectory. Call 718-871-1310.