Here is a great tip to help you play the 17-note kalimba. Actually, most "regular" kalimbas follow this rule, so read on even if you have an 8-Note, an Alto, a Treble, or a Pentatonic kalimba.
"Regular" kalimbas have low notes in the center, and as you go farther from the center, notes get higher. Consecutive notes alternate from right to left, going outward as you go up the scale.
Consider the scale "Do Re Mi Fa So La Ti Do" = "1 2 3 4 5 6 7 8." If the low note, "Do" is on the right side, and the "Re" note is on the left side... you will find that the high "Do" is on the left side of the kalimba, on the hand opposite the lower version of the same note.
Check out what this means when you're playing the kalimba!