by jorge » Tue Aug 07, 2007 3:21 am
Hi,
Although we all like to see a perfectly round drum head, and probably the resale value of a drum would be lower if the head is out of round, sometimes the sound of an egg-shaped drum is great. In 1985 I had the opportunity to go to Matanzas to see Grupo Afrocuba de Matanzas play. Regalao, who plays quinto with Afrocuba, is my favorite quinto player, and that day he sounded even better than I had heard him before. His tones had a pure, sweet sound, and the secos were beautiful, dry, hollow sounding. It was over 90 degrees and he played a real fast columbia for about 20 minutes, and was barely sweating. After they played, I went to talk to him and noticed that the head of his quinto was very egg-shaped. The drum and skin were old, I did not look inside to see if there was an alma, but I doubt it. He let me play it, and that drum was the best sounding, and easiest playing, quinto I have played. It didn't have the sustained tone that a lot of quintos have, the tone was shorter, sweeter, and drier than most quintos I have heard, and it felt like the response was quicker. A one handed slap sounded beautiful and perfectly dry, no hint of ring, and I remember getting a good slap even hitting the drum softly.
I have tried many skins on 3 quintos I have had, and have never been able to get that sound, even with an old skin. All my drums have almas, and I have not dared try to make the head out of round. The physics of a circular head predict clear resonant tones and a longer sustain, whereas an elliptical head would have much more complex and less clear resonances, with much faster damping of the tone, so the theory seems to agree with the reality.
I am not saying we should all let our drum heads get out of round, but maybe the "ideal" of a perfectly circular head does not always give the sounds that we prefer.