Dear Pianoexpert, I have noticed that the hammer heads of the upright piano have a rather pronounced inclination compared to those of the grand piano, even though the underlying problem is due to the fact that the strings cross in the bass, mid-bass area... etc. etc... Is there a limit to the inclination of the hammer heads beyond which one cannot go? I am sure you will clear up every doubt for me, my SUPREME MASTER! (for me) OF technological and constructive knowledge of the piano.
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Let's say it would be better to move to the appropriate section. Thesimon will help us.
Anyway, this limit is up to the Builder. Excessive inclination means having a very low scale height and a very short tail. For scale heights, we start from 105 cm and for the tail from 155 cm. Smaller measurements are not appropriate. Everything is inevitably "forced" and this does not favor sufficient "harmonicity" of the instrument (and not only). The action becomes short and less easy to play. The possibilities of the instrument are greatly sacrificed.
