Gingerblue 6.2.0 for musicians who compose, record, and share original music in Evolution
You can try Gingerblue 6.2.0 with Evolution email attaching in the Broadcast step in the GTK+/GNOME wizard available from https://www.gingerblue.org/ and https://wiki.gnome.org/Apps/Gingerblue
Gingerblue 6.2.0 provides a link in the final GtkAssistant Broadcast page that launch Evolution or another email program that supports mailto:?attachment=localOggVorbisRecording.ogg application handler in GNOME 43. The syntax mailto:?attachment is not yet a RFC and it is only supported by Evolution 3.44 as far as I have tested, the default email client on GNOME 43.