They're just half notes (1/2), quater notes (1/4), eighth notes (1/8), sixteenth notes (1/16), etc. The "t" makes the subdivision triplet, the big circle is a dot, as in dotted eighth note. WHOLE is a whole note. It all assumes 4/4 time, but it's pretty easy to make it triple time by setting the correct tempo and just using the triplet and/or dotted versions of the note lengths.
