I've got this new Chopin Mazurkas book ( the latest edition Urtext) and there are about a million explanations about each mazurka, but I don't understand something. In the first image shown, my 'old' book shows that place circled in red as two chords - no tie/slurs. As you can see in the second image, my 'new' book shows it with a tie, which means that you're not supposed to play the top LH A-flat, right? At least I think it is a tie or is it a slur? I thought that a curved line connecting two of the same notes is a tie. Anyway, also in my 'new' book is an additional booklet with even more explanations and the third image shows what it says about that particular spot. But I dunno - maybe I'm more dense than usual today, but those words really confuse me. Do they want you to play all three notes in the chord or not? I know this is getting very nitpicky, but it's important that I get this right because it's one of the pieces in my 'project', so I hope someone can help me.