Orchestral Suite No. 1 in C Major, BMV 1066
Concerto for Two Violins in D minor, BWV 1043 (fast forward to about 50 seconds)
Violin Concerto No. 1 in A minor, BWV 1041
Double Concerto for Oboe and Violin in D minor, BWV 1060
He's one of my favorite composers. Check out my blog post about Bach's Brandenburgs!