By Ray Dillard
While all three wood types available in this series offer excellent sound, there are some differences worth noting. It is clear that the Pine drums can offer a great sound with a minimum of weight to contend with. This is extremely important for the young player, as "handling" the drum is certainly part of mastering the playing techniques! The Butternut drums add only a small amount of weight, but have some sonic advantages for the player with a bit more "defined" playing technique. Maple offers superior sound, but is also quite a bit heavier. This difference in weight can make the drum much more difficult to "handle". It is important to realize that the added weight may indeed preclude a player from taking advantage of the benefits of the wood due to the challenges of handling such a heavy drum! With this being said, here are my comparisons of drums in the Circle Series with additional comparisons made to the Pro Series Maple drum of the same size.
In these comparisons, I will be referring to the three principal tones played on djembes.
I will also speak of the balance between these tones on the various wood types. This is based on similar striking forces and the resulting volume of the tone described. This is used to distinguish which tones are the most pronounced on each wood.


Circle Series Djembes
Pine
Butternut
Maple
Pro Series Maple Djembes
The unique shape of these drums offers some significant difference in the overall sound of these drums. While all of the drums in the "Circle Series" are certainly high quality, professional instruments, the "Pro Series Maple" drums offer the experienced player considerably more tonal control. These drums are quite easy to play, offering a generally more "defined" sound than the drums in the "Circle Series". While all of the drums in the "Circle Series" are made with just as much attention to detail and with just as high quality materials, the shape of the "Pro Series" offers a more expressive sound-palette. The comments that follow are generally a comparison of the "Pro Series Maple" drums to the "Circle Series Maple" drums of the same size.
When comparing the optimal tuning range of the 10" drum to the 12" drum, it is found that the ranges are approximately a musical "fifth" apart. (i.e. the distance from C to G). It should be understood that each of the drum sizes has a very broad range that it can be tuned into, but there is a range which works with the head size and the drum depth to produce an optimal sound. It is this which is being considered as the optimal tuning of a given drum. In general, the Pine drum's optimal tuning is about a musical third (i.e. the distance from C to E or E flat) below that of the Butternut drums. The Butternut drum's optimal tuning is about a musical second (i.e. the distance from C to D or D flat) below that of the Maple drums. Interestingly, when the Bass Tone of a Maple drum is tuned to a pitch lower than that on a Pine or Butternut drum of the same size, the higher Harmonic Tone is still as high or higher as that of the Pine or Butternut drums. This further emphasizes the distance between the pitch-centre of the Bass Tone and the Open Tone on the Maple drums.
And then there were the 13" Drums (and EVEN the 14"!) . . .
All things considered, the thirteen-inch Djembes seem to be sized optimally for "sound". They are obviously heavier, and a bit more challenging to handle. This is especially true in the case of the Maple drums, but the reward for dealing with this is worth it! Something about the length of the "throat" of the drum coupled with the head diameter brings together the most optimal drum in terms of both playability and timbre.
The range of these drums, both in the Circle Series and the Pro Series is amazingly large. You can easily tune the drums across a range of a musical sixth (i.e. the distance from C to A or A flat). The Maple drum has an optimal playing range even greater! This allows the drum to be used in a greater amount of musical settings where different Bass Tone notes might be preferred.
The Circle Series drums in thirteen inch, available in Pine, Butternut and Maple, sound much more "similar" than one would expect. In the smaller drum sizes, these three woods had quite unique "voices", but in this size the differences are more subtle.
Pine
Butternut
Maple
Pro Series Maple in 13" and the Jumbo 14"
The final word . . .
For me, the 13" Pro Series Maple drum is one of the finest djembe-type drums I have ever played. It sounds great. It feels great. You can play it at a variety of volumes with a variety of tunings, and it always works. It is easy to play, with a very balanced sound. You don't have to work hard to do anything on this drum. The craftsmanship on the entire Mountain Rythym line is outstanding. There is nothing in terms of craftsmanship, materials (other than type of wood), or attention to detail that separates any of these drums. From the smallest Pine drum in the Circle Series to the monster 14" Pro Series Maple, the "build" on these instruments is impeccable!