My observations as a player, and as a listener to the resulting recording are that the ConCarbo carbon fiber tailpiece provides a clear improvement in the performance of the cello in every respect. The response to the bow is greatly enhanced, as is the clarity and focus of pitches played, particularly in the higher registers on all four strings. The increase in the fundamental frequency seems to increase the power and volume in the lower register most especially, but it is my impression that this quality is also responsible for the enhanced clarity of pitch in the upper registers, as well. Ultimately, these characteristics make the cello more clear, focused, and projected in all dynamics, from the softest to the loudest. The difference is stunning and unmistakable.