What note can be found at the 4th fret of the 6th string?

The note found at the 4th fret of the 6th string is indeed the note A. To understand this, it's useful to recall that the 6th string on the guitar is tuned to E in standard tuning.

When you play the 4th fret of the 6th string, you are effectively moving up the neck of the guitar to reach the notes. The natural notes in the order of the chromatic scale starting from E are E, F, F#, G, G#, A, where the 4th fret corresponds to the note A.

This process of identifying notes on the fretboard highlights the importance of knowing the open string notes and how they progress as you move up the frets. Understanding this movement helps in navigating the fretboard more efficiently and recognizing notes by their position.

Utilizing this knowledge can significantly enhance your ability to play and improvise on the guitar, making it easier to find the right notes in various musical contexts.