Want to make the timing of your embellishments better? It takes a good knowledge of where the beat occurs.
Take a look at this little exercise:
You probably recognize the high A strike, the G gracenote before the high A, and what is commonly called a high A doubling, shown as a high A and a G gracenote before the high A. They are both played by sliding the thumb quickly across the high A.
When you make that movement makes all the difference. The high A strike is simple, the G gracenote occurs right on the beat. That is not the case for the doubling. For a high A doubling, go to the high A on the beat. Only after the note is clearly sounded do you slide the thumb for the G gracenote. The timing should be consistent with your other doublings. Avoid the common mistake of going to the high A slightly before the beat so you can slide the thumb on the beat. Your tunes will sound better with this one little adjustment.