"I'm not tone-deaf, Hattori," he snapped in annoyance. "I told you you didn't want to hear me sing," Shinichi grumbled to himself.

"Ya, gotta be kiddin', Kudo, didja hear ya'self? How can ya not be?"

"I'm not tone-deaf, Hattori; I have perfect pitch. It's impossible to have perfect pitch and be tone deaf. They mean opposite things." Being bad at singing did not mean a person was tone deaf. He could hear tones perfectly, thank you. He just utterly failed at making his voice reproduce them.

"Then are ya sure ya have perfect pitch?"

"I'm not tone deaf, I just can't sing."

"That's it? Ya just can't sing?" the disbelieving tone only made Shinichi more annoyed. Not everyone was good at singing, just like how not everyone was good at sports. It was just the way it was.

"I'd imagine it's similar to you utterly failing at imitating a girl's voice."

"Oi, Kudo, how in Hell am I supposed ta know how ta do that?"

"Exactly."

"…Hah?"

"Hattori, you've sung before, right?"

"Yeah."

"Do you know what your voice does when you sing? I'm not talking about trained singing or anything; do you know how your throat makes the right sound come out of your mouth?"

"Uh…I think it's… somethin' about vocal strings…" Shinichi raised an eyebrow. "Okay, no, I have no idea."

"Whatever your throat does when you sing without you needing to think about it, mine doesn't. I can hear what's supposed to come out of my mouth; and I know perfectly well exactly how bad what actually comes out sounds."

"An' ya never tried learnin'?"

Shinichi gave him an annoyed look. "When I was five, my mom tried to teach me. She gave up when I barely improved after two months."

"That sucks, Kudo."

"It probably didn't help that she found me playing one of the practice exercises perfectly on the piano and still mangling it when I tried to sing along."

He couldn't tune his vocal cords, or memorize throat position or feeling to get himself to sing properly, but he could do both of those with an instrument. It was likely because he could physically see exactly what movements and fingerings he was supposed to be reproducing; and better-than-average memory and good hand-eye coordination also helped.

"Wait, seriously?"

"She took a video of it. Also, it's why she let me learn violin later."

"Why violin?"

"Holmes played violin. And I liked the way it sounds when you play it properly."

"'Course he did," Hattori muttered, "Ya' still play?"

"Not really since, well, Ran would be suspicious if I played as well as I do, seeing as I'm currently six. Also, I think Kaa-san gave away the child-sized violin."

"They make stuff like that for kids?"

"Hattori, they make child-sized bokken, why are you surprised there are child-sized musical instruments?"

"I bet ya'd look ridiculous with a regular-size violin, an' that's the real reason ya' don't play."

"Oi!"

I leave Conan's revenge to your imagination :D

Also, this is my first time attempting to write an accent for Hattori, so let me know what you think. R&R please!

Edit 5/9/19: Went back to change phrases that bugged me. Guess that's what I get for posting without an actual edit. Also, have an extra!

Conan: *messes with bow-tie* Hah! Now I can sing, too!

Hattori: One note at a time doesn't count.

Conan: Why not? It's all I needed in Movie 12!

Hattori: Pretendin' ta be a phone isn't singin'. It's just weird.

Conan: ...Why am I friends with you again? *wanders off to find a murder to solve*

Hattori: Oi! Get back here! *body falls from above* ...Dammit, Kudo.