in cue sheet, can the title contain double quote? for example, my track's title is: No. 21b Aria: "Mi tradi quell'alma ingrata" (Elvira). i tried the following, neither worked.
TITLE "No. 21b Aria: "Mi tradi quell'alma ingrata" (Elvira)"
TITLE "No. 21b Aria: \"Mi tradi quell'alma ingrata\" (Elvira)"

the work around is using single quote instead of double. that is inelegant, since the title already contain single quote "quell'alma".

thanks.

Use two apostrophes (your single quotes ' , not primes `). FB2K makes it look like a quotation, I bet what ever you are using will make it look like one too.
TITLE "No. 21b Aria: ' ' Mi tradi quell'alma ingrata' ' (Elvira)"

1) foobar2K seems to use semi-colon. what if the field already has semi-colon? can i escape the data? for example, the PERFORMER field is "Christa Ludwig (Fricka, Waltraute; mezzo-soprano)" which is one field, not two.

2) in cue sheet, how do i specify multi-value. iow, is there an "add" tag, something like
PERFORMER "Christa Ludwig (Fricka, Waltraute; mezzo-soprano)"
ADD PERFORMER "Birgit Nilsson (Brunhillde; soprano)"
ADD PERFORMER "Hans Hotter (Wotan; bass-baritone)"

2) You can't.

If foobar2000 already auto-separates by semicolon, can't you change the format of your tags and maintain multi-value fields in that way?

ALT+0147 = “
ALT+0148 = ”

TITLE "No. 21b Aria: “Mi tradi quell'alma ingrata” (Elvira)"

it's more elegant to my taste and it works

The numbers 0 1 4 7 are also in the same column on the number pad. Easy to remember.

1) if i was french i can also use the guillemets «»
2) considering that i have over 5000 tracks, changing double quote and semi-colon is a bit daunting
3) so, are your answers basically saying no way to escape characters like double quote, semi-colon, etc.
4) is the semi-colon a foobar2000 thing, or a cue sheet thing?

thanks