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Listening to Karin/Lotte now and some random Profan and Concept 1 variations on Youtube earlier. K/L definitely a little more funky (delightfully shitty bassline on Lotte 2!) and "present" than earlier letters and even has some vocal samples but still enjoyable.
Was surprised to learn the Ernst series actually completed the alphabet and am contemplating downloading all of them as an unnecessary life project.
Oops that bassline's on Lotte 1
DJ segue I would like to try but am probably not bold enough for in public: Lotte 1 into Shriekback "Sexthinkone"