NOTE: audio clips (isolated phonemes) for all single chars and composite graphemes in SLOT_0
(vowels, consonants and "mehrteilige Basisgrapheme"), as well as for consonantal clusters
(i.e. additional consonants in one or more following slots) have been re-recorded (spoken by human)
up to and including the first vowel (in SLOT_2 from "b-l-a" to "z-w-ö", in SLOT_3 from "s-k-l-a" to "s-k-l-e").
Polyphon graphemes (except v=f) are currently not linked (c1=k c2=s c3=tsch c4=ts, ch1=[C] ch2=k ch3=sch, v=w, y1=ü y2=j y3=ie).
Initial unvoiced "s" is not separated from voiced "s" (tbd).
Prefixes "be-" and "ge-" are listed separately (more tbd).