If this device displayed correctly in both the bass and treble cleft I could see some value in reconizing chords in sight reading.

Just pressing some notes on a keyboard and having the device name the notes for you does not apear to be of any use as far as I can see.

The A flat 6 sharp 9 indication is meaningless.

Billy

“Amazing! I’ll be working with Jaco Pastorius, Charlie Parker, Art Tatum, and Buddy Rich, and you’re telling me it’s not that great of a gig?
“Well…” Saint Peter, hesitated, “God’s got this girlfriend who thinks she can sing…”