add lyristic support

[kkrebs]

We need support for former <cmo:lyricsDesc /> tag (not used till now). For details see: http://durl.maxweberstiftung.de/cmo/manual.html#lyricsDesc

[fabiancremer]

We lack of examples and documentation here, therefore I need further clarifications with the editor.

[fabiancremer]

We need custom metadata elements for these, explained via email

[kkrebs]

Example:

<mei:classCode authURI="http://www.corpus-musicae-ottomanicae.de/api/v1/classifications/cmo_literaryform" xml:id="xxx"/>

<cmo:lyricsMeter>
    <name>Hezec</name>
    <cmo:structure>mefâ‘îlün fa‘ûlün mefâ‘îlün fa‘ûlün</cmo:structure>
</cmo:lyricsMeter>
<cmo:lyricsRhyme>plain text</cmo:lyricsRhyme>

• Literary form (dt. = literarische Form) as classification
• Meter (dt. = Versmaß) and Rhyme (dt. = Rhythmus) as cmo specific metadata, as part of mei:extMeta http://music-encoding.org/documentation/3.0.0/extMeta/

[fabiancremer]

tempo is not yet inserted as classification

http://cmo.gbv.de/cmo/receive/cmo_expression_00003819

[kkrebs]

I would like to move this ticket to mei 4 milestone.

[sgroneme]

The information on lyrics were not considered before in the original text edition (before Sep 2019), but by now it was decided to include such information in the (classic format) text edition and the digital edition. All information contained by <cmo:lyricsDesc /> are now modelled in TEI via the and elements, and referenced by and elements. This TEI modelling was independently done from this ticket. As per my information, the literary form is to be discontinued in the source catalogue. Zeynep Helvaci has more information on that.