
Lower Mordent - A Guide to Ornamentation
1.
The lower mordent

2.
When an accidental is placed below the lower mordent sign, it signifies that the lower note is to be raised or lowered a semitone.
3.
In Baroque music the short appoggiatura is sometimes combined with the lower mordent.
4.
When the lower mordent is placed before a chord, it only affects that particular note before which it is placed.