What is the name of the note located on the 11th fret of the 1st string?

The note located on the 11th fret of the 1st string, which is the high E string, is B. To understand this, it's essential to know how the notes are arranged on the guitar fretboard.

Starting from the open 1st string, which is an E note, you can follow the musical alphabet as you move up the frets: E (open), F (1st fret), F# (2nd fret), G (3rd fret), G# (4th fret), A (5th fret), A# (6th fret), B (7th fret), C (8th fret), C# (9th fret), D (10th fret), and finally arriving at B at the 11th fret.

So, the 11th fret represents a B note. This systematic increase in half-step intervals allows guitarists to easily identify the notes on the fretboard and understand their positions relative to one another. By mastering this, players can navigate the neck more effectively, aiding in both playing and composition.