The Renaissance flute is rather mesotonic by nature and its tablature can also give rise to discussion. On the other hand, the ears and fingers of the 21st century have their habits. The Renaissance is a period of great intellectual and artistic abundance. AFNOR and ISO did not yet exist, nor did frequency measurements. Reference 415, our current Sol # is an approximation of the Baroque that appeared more than a century after Claude RAFI, and is now considered to be the ancient one. If the equal temperament also called temperate is universally adopted, it is also a convenience. For a given note, it is more pleasant to hear third, fourth, fifth chords, etc. in perfect mathematical proportions 2/3, 3/4, 4/5, etc. This ideal is mathematically impossible for all notes, all chords, hence the frightening "wolf’s flush", and the multiplication of mesotonic temperaments, supposed to approach the "middle way", a utopia. Would we drink the wine of our ancestors; would we listen to their music? Truce of controversy, two choices are proposed for the tuning fork: 415 and 440; two choices are proposed for the temperament: equal, so-called "classical" mesotonic, as reported by Philippe ALLAIN-DUPRE in his book "Les flutes de RAFI" published by J.M. FUZEAU. The tablatures themselves remain guides, possibly subject to the choices of flutists.