Self-sustained musical instruments are complex systems, displaying a wealth of sound regimes whose characteristics depend sensitively on a large number of design parameters (fixed by the instrument maker) and control parameters (adjusted continuously by the musician). We focus here on flute-like musical instruments. In the case of transverse flutes, the geometrical parameters of the exciter are largely adjusted by the musician. In recorders and organs, on the other hand, most of these parameters are fixed by the instrument maker. On recorders, moreover, one must play multiples notes on multiple registers using only one pipe, which enforces compromises from the instrument maker perspective. Unveiling the relationship between geometrical parameters and sound characteristic remains a major challenge. Here, in close collaboration with several instrument makers, we aim at identifying the most important design parameters involved in the control of attack transients. We present an experimental setup that aims at improving our understanding of the influence of the key parameters used by instrument makers.