Puzzler #12

[@luckysflute5011]

Hi Maggie, your videos are always very useful! Could you post something about tuning very low notes? Thank you

[@PianoTechMaggie]

I need to make several videos about midrange AND moving into the bass. I'm so busy it won't happen until Spring, but in this video I'm checking my bass with various intervals. You might find something interesting there. Thanks for your interest!
ua-cam.com/video/i_OI2-sE3b8/v-deo.html

[@PianoTechMaggie]

I found one! I forgot I had made this one: ua-cam.com/video/Q_Ptg6LAO2Q/v-deo.htmlsi=FsSTgfLOmvps2_Aa

[@meganwarren735]

😀😀😀

[@sebthi7890]

The fifth f-c led me to the solution. Sounds like the police passing by
🚓🚨 😁

[@samthedrums]

Spotted the naughty note at 57"