should support continuation syntax

[bwl21]

From abc standard http://abcnotation.com/wiki/abc:standard:v2.1?s[]=comment#field_continuation

3.3 Field continuation

A field that is too long for one line may be continued by prefixing +: at the start of the following line. For string-type information fields (see the information fields table for a list of string-type fields), the continuation is considered to add a space between the two half lines.

Example: The following two excerpts are considered equivalent.

w:Sa-ys my au-l' wan to your aul' wan,
+:will~ye come to the Wa-x-ies dar-gle?

[paulrosen]

Closing for inactivity. If there is still a problem that doesn't have a work around, let me know.

[SirPL]

@paulrosen I think it is not possible to change lyrics style mid-word. This can be achieved with continuation, as described in the standard.

%%vocalfont Times-Roman 14
w:nor-mal
%%vocalfont Times-Italic *
+:i-ta-lic
%%vocalfont Times-Roman *
+:nor-mal