How many sixteenth notes make two quarter notes?

In 4/4 or common time, a quarter note equals 1 beat. There are 4 beats per measure. 4 sixteenth notes equal 1 quarter note in 4/4 time. There are 16 sixteenth notes per measure, in groups of 4. (4 x 4 = 16) Eighth notes are 8 to a measure. Here is a helpful music equation: 2 eighth notes equals 1 quarter note equals 4 sixteenth notes. If you are in 6/8 time, notice that 8 is the bottom number, so the 8th note becomes the unit of 1 but the ratiOS between the notes are still the same. Now the 8th note gets one beat, quarter note gets 2 beats, dotted quarter gets 3 and since the 8th note STILL equals 2 16th notes, there would be 12 16th notes per measure because there are 2 16th notes for every 8th note (6 x 2 = 12). Always check the time signature before you begin playing.