I think you are right. I see that word thrown around. What does it mean in this case? Both examples are in treble clef, by the way. Below is another example where the symbol occurs above no note.
Liquescent notes are fundamentally reminders of good diction/phonation. In the example you posted where the symbol is reversed, notice that the second note is higher than the first, so it is considered ascending rather than descending, as in the other examples. Go here: http://www.newadvent.org/cathen/10765b.htm ctrl+F and search for liq, which will take you to the pertinent section Then do the same in this article: https://forum.musicasacra.com/forum/uploads/FileUpload/10/6fb87040ab599517f709f0af311841.pdf That article goes into augmentative versus diminutive liquescence. In the oldest manuscripts, the same symbol is used for augmentative liquescence on a syllabic (single-note) neume and for diminutive liquescence at the end of a multi-note neume.
Thank you very much. Those links are helpful. It's strange to me that these small details in pronunciation were included in 11th century music. For me, it would be nice to hear a professional sing a phrase with and without this 'liquescent' symbol.
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