Do you have any good links for performances in the period style and instruments? THese are great in their own right, but I'd love to know how this music might have sounded in Bach's day.
Giuliano Carmagnola playing the Bach violin and harpsichord sonatas: https://www.youtube.com/watch?v=ziZPanY50-c
Jordi Savall and Ton Koopman, viola da gamba and harpsichord sonatas https://www.youtube.com/watch?v=HayeiZb5CUA
Rachel Podger does quite a good recording of the Bach sonatas and partitas, but every violinist plays these (I mean that quite literally; violin competitions, modern or Baroque, regularly require a movement from these along side whatever else you do) https://www.youtube.com/watch?v=H2e3eoOXeNs
also a master class of her teaching the Chaconne from these, which vies for the greatest piece ever written for violin https://www.youtube.com/watch?v=uhcPDo3UPw0
Trevor Pinnock and the English Concert, Bach 4 harpsichord concerto (crank the volume on this one like you're listening to metal) https://www.youtube.com/watch?v=QA1L0SsEXxU&list=PLF81B6EFFA...
I'm going to stop now because I could do this for hours before we even get into other composers of the period.
* https://en.wikipedia.org/wiki/Tafelmusik_Baroque_Orchestra