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Conversion ogg to mp3 and attaching tags.
Quotation is driving me crazy
Any help more than welcome


FIRST OPTION

Error
Unrecognized option 'metadata TITLE="Requiem & Kyrie" -metadata ARTIST="Hector Berlioz" -metadata TRACKTOTAL="8" -metadata ALBUM="Grande Messe des Morts"'

bash -x
ffmpeg -i '1 - Requiem & Kyrie: Introitus.ogg' -threads 4 -acodec libmp3lame '"-metadata' 'TITLE="Requiem' '&' 'Kyrie"' -metadata 'ARTIST="Hector' 'Berlioz"' -metadata 'TRACKTOTAL="8"' -metadata 'ALBUM="Grande' Messe des 'Morts""' -ab 192k ' ' '1 - Requiem & Kyrie: Introitus.mp3'

SECOND OPTION
No quotes in $tag

Error
Unable to find a suitable output format for '&'

bash -x
ffmpeg -i '1 - Requiem & Kyrie: Introitus.ogg' -threads 4 -acodec libmp3lame -metadata 'TITLE="Requiem' '&' 'Kyrie"' -metadata 'ARTIST="Hector' 'Berlioz"' -metadata 'TRACKTOTAL="8"' -metadata 'ALBUM="Grande' Messe des 'Morts"' -ab 192k ' ' '1 - Requiem & Kyrie: Introitus.mp3'

Please try this:

And no quotes when you pass it to ffmpeg.

Thanks for the replay.
Unfortunately, I cannot change manually from the imbedded single quote to the double quotation on $tag (this is the output of other function). Is there any way to change from single to double quotation without affect the rest of the string?
Thanks

this work for me
'