Tubes are needless me to cos all the magic is in my music and my speaker’s ability to reproduce that magic to the best of its ability.
I am not going to play random number generator with my amp.
I have indulged in the tube thing and all it did was falter at getting out of the way and let my speaker shine. (that is also my fault for getting high output impedance tube amps)
Speaker impedance relationship means I do not want the amp altering my speakers FR so near 0 output impedance amplifiers with high damping factors are what I strive for and thankfully solid state amps are tremendous at that in the 21st century