Hi Quetscher. Glad you like it! I do the triplets with my tongue, though you can also do them with fingers on single notes. A flute player friend showed me how to do it – flute players do it all the time. For a triplet, I make the sounds te, ke, te, into the mouth piece. Start by doing it very slowly, in perfect time, and then gradually speed it up, making sure to never compromise the rhythmic accuracy. After a while it becomes natural and effortless!