Nhan Do on Instagram: "Harp Day 302/400 #400DaysOfPractice A quick practice session this morning as I have another family event at noon and tonight. Practising trills techniques. It's a very tricky movements that require replacements of the next string while the current string being played, to ensure very clean sound. Evetually this will be speed up to the 2-hand trill technique #harpist #practice"