What note is this?

[marielofredwall]

I was reading a Scarlatti sonata, and there were these quite odd notes mixed in the score... https://javanese.imslp.info/files/imglnks/usimg/5/55/IMSLP21370-PMLP11026-Scarlatti-SonatasK001-050.pdf

If you click on the link, on the very first measure, the left hand has these notes that are squarish. Are you supposed to play these notes differently? Or do you just play them normally?

Also, for measure nine, do you play only the trills for the right hand with the left hand playing the othet notes or do you play all of it with just the right hand?

Thank you so much, and sorry if this is in the wrong section.

[mikeowski]

I used a score from this pdf once for learning sonata K 1. However, neither I nor my teacher could figure out what those strange notes are and I threw it away and used a normal score. It might have to do with articulation or something, but without an explanation it's useless. You should look for different sheets.

[j_menz]

It's just bad printing. They're normal notes.

For the trills (mordants, actually) use your left hand for the other notes - it's easier and it's not otherwise occupied.

[musicman99]

My guess is that the square notes might be played on another manual, for harpsichords with more that one. On a piano, this could be replicated by playing them softer or in a different octave.

Carlos R.