Needs no explanation. I played it countless times. Hard work in the LP era. Easier now, when the whole Act 2 is on 1 CD, as this one by Karl Böhm. Birgit Nilsson as Isolde and Wolfgang Windgassen as Tristan.
I don’t remember when I heard Tristan und Isolde for the first time. It must be long ago. The prelude, whole Act 2 and Mild und Leise are the highlights. Actually, Tristan und Isolde is one highlight, from beginning to end.
It is a miracle to me how Wagner could have thought and composed this music. Be it physical or spiritual. The music is magical.
CD:Karl Böhm, Birgit Nilsson, Wolfgang Windgassen, Christa Ludwig, Martti Talvela, Eberhard Waechter, Bayreuther Festspiele 1966.Amazon
CD:Wilhelm Furtwängler, Kirsten Flagstad, Ludwig Suthaus, Blanche Thebom, Josef Greindl, Dietrich Fischer-Dieskau, Chorus of the Royal Opera House, Philharmonia Orchestra. Disadvantage is Act 2 on 2 discs.Amazon
DVD: Not found one yet, that I preferred to the CD’s.
YouTube:Birgit Nilsson Mild und Leise Bayreuth 1966.