I am not sure if I translated this right. Do the flat and sharp emojis really refer to music?

as all other letters are already there from Cyrillic.

1. only in separate words,
2. at the end of entered text.

Letter groups A, B, C, E etc. should be redefined in C code
t https://github.com/espeak-ng/espeak-ng/blob/master/docs/dictionary.md#redefinition-of-charater-groups

As Shadda is diacritic mark, it doesn't have meaning as separate letter,
therefore it should be consumed together with diacritized letter.

because then words in ar_list file should be written in replaced form

it's certainly more than I expected, but since it still isn't merged I figured I do these changes now.

Those are just very few fixes to both the German list and rules

If this rule wouldn't be there, the g would be pronounced voiced by espeak which it shouldn't do.

Those are even more fixes. 1 entry in list added, and few existing entries in rules and list modified.