After wading through the posts in the link provided and after lots of trial and error (and frustration), I have managed to put together my own little package as an action group which fixes a lot of the common problems I encounter with lyrics (this is of course to my personal taste). Thanks ohrenkino for the link.
Following are the expressions for anyone that might be interested:
Remove space/s from the start and end of lines
$regexp(%unsyncedlyrics%,^ +| +$,)
Reduce all instances of multiple spaces to one space
$regexp(%unsyncedlyrics%, +, )
Remove space in front of question mark
$regexp(%unsyncedlyrics%, ?,?)
Replace wrong type of apostrophe
$regexp(%unsyncedlyrics%,´|`,')
Change (space dash space) to (comma space)
$regexp(%unsyncedlyrics%, - ,‘,’ )
Remove full stop/s, commas & semi colons from the end of all lines
$regexp(%unsyncedlyrics%,.+|','|;$,)
Change single lower case ‘i’ to upper case ‘I’
$regexp(%unsyncedlyrics%,\bi\b,I)
Change lower case ‘i’ before apostrophe to upper case ‘I’
$regexp(%unsyncedlyrics%,\bi',I')
Change start of each line to uppercase (without affecting other uppercase words but doesn’t allow for non-word characters (eg ") at start of line)
$caps2(%unsyncedlyrics%,$char(10)|)
Regards