Acheron turned to look at Herta, then listened carefully to the sound of the piano.
The music was undoubtedly exquisite.
So exquisite that a puzzled expression gradually appeared on her face.
As if noticing Acheron's confusion, Herta turned back to look at the person who seemed ready to fight her friend and patiently explained.
"He was avoiding chords and scales that required larger hands to play comfortably whenever possible, even though he should have been able to press them with ease."
"His stamina, reach, and finger strength are all sufficient."
"But as you can see, this piece deliberately avoids them."
As she listened to the notes, she noticed that certain scales appeared very infrequently.
It gave the impression that the pianist could reach them, but would feel slight strain when playing them.
"Unless something unexpected happened, he was simply imitating a pianist he knew well. That pianist was most likely a woman, probably between 170 and 175 centimeters tall."
"And she should have had a fairly good relationship with this guy."
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"You noticed all that?"
Acheron froze.
She had not expected that simply listening to the same piano piece could uncover a piece of Russell's past.
"Is that considered rigorous?"
"If I were truly pursuing rigor, I could also tell you that the woman probably had quite slender hands, did not wear nail art, had an exceptional appearance, and was likely skilled in more than just music. She should also have had some ability in economics and interpersonal relationships."
"She likely met Russell after Russell obtained... forget it. Saying that would be a little offensive."
Under Acheron's somewhat dazed gaze, Herta spoke with an expression of mild boredom.
Weren't those things written all over his face?
She had merely stated what