I try to replace some words in Genre.
So I created under Manipulators -> Word Replacer a new Replacer called Genre_Replacer (see Word_Replacer.png). Then in Local Correct -> Auto Format I changed “Replace words by another word” from “Replacer 1” to “Genre_Replacer”.
Then, when I use Action -> Local Correct -> Correct Genres nothing is changed in the genre column. In this case it should change “Rock and Roll” to “Rock & Roll” or “R B” to “R&B”
Am I doin’ something wrong? 
The problem is that it is a Word Replacer ,and ’ R B’ is not a word it is two words. Jaikoz splits he text into words seperated by word boundaries such as ’ ’ and then changes any words in column A into column B.
If we didn’t match on whole words only you could have a match on ‘Rock’ changing words such as ‘Rocky’, which you wopuldn’t want.
You could achieve what you want by using the Find & Replace function
I have this same issue. It would be nice if I could have Jaikoz always change ‘rap and hip-hop’ to ‘Hip-Hop/Rap’.
Can we make this a feature request?
I think it would be fine to make it more readable for player. Your variant is better to do hiphop;rap … or jaikoz do this with genre and 2 in front of genre field.
Some players can read it like 2 genres separately and you can filter it easy, like musicbee for example.