The phrase, "hitting the right note" has many meanings. To a classical music performer, accurate to the score; a jazz musician, true to the vibe; a stereo system, enhanced emotion.
We all recognize when a wrong note is played. Step into any reproduced music environment and you're pleasurably or painfully aware of music's veracity.
Our acceptance of right or wrong depends on expectations. We're forgiving of our child's first band concert.
When it comes to a system hitting the right note, we're always pleasantly surprised when affordable gets our foot tapping.
And painfully aware when expensive is off key.