One aspect I noticed in some blowers (trumpeters) is the loss of qualitative level with the passage of time. I personally noticed this at some professional trumpeters. The situation may be due to several reasons: with the passage of time, the facial muscles become less flexible due to migrations of teeth in time, milimetric migration that occurs with aging, scientifically proven, changing the support of the stomach (the place where the muscles are placed on the facial muscles), which is often unnoticed by the person concerned, finding no explanation for lowering the professional level, knowing that he did not change anything from the breath, the position of the mouthpiece or the facial muscles. A very important aspect is the density of the facial muscles fiber, depending on this density a trumpet future will have a warmer, softer and velvety or coarser, strident and harsh sound. Unfortunately, in both Romania and the world, this density of facial muscles is not taken into account when a child starts a tool, whether it be brass or wood. Perhaps technical apparatus would exist to establish this density, but there are no clear criteria established by wind blowing specialists to determine the limits between which a particular instrument such as oboe, clarinet or trumpet would be indicated. Another very important aspect in the choice of a tool is the elasticity of the muscle fiber. Its high hardness results in a harsh, strident sound, while an exaggerated elasticity (softness) leads to poor resistance over time. Many trumpeters complain that when performing a wider work with technical difficulties, with frequent references in the acute record, longer time, the facial muscles do not last until the end of the work, or the explanation lies precisely in the high degree of elasticity of the muscles facials, which is why they get prematurely tired. A perfect balance between muscle fiber density and its elasticity results in spectacular results. This balance can not be technically tested, the tester being for the time being the "mother nature", which also depends on the genetic information acquired from previous generations.