These are the opening snippets of Bach's Brandenburg Concerto No. 2 - the opening of the 1st, 2nd and 3rd movements. I'll try to edit this by adding YouTube clips of performances of each movement. I just compiled such an excellent board when Pinterest failed me! I'll try again soon. ---UPDATE --- Pinterest have become bastards & won't let me redirect to great performances for fear I'm spamming. Pinterest is anti-educational!