Bash.org joke

Via bash.org

[Snausages] So, an E-flat, a G-flat, and a B-flat walk into a bar.
[Snausages] And the bartender says,
[Snausages] "I'm sorry, we don't serve minors."
[Myke] That struck a chord.
[Snausages] Careful with those puns, you'll get in treble.
[Myke] But they're key to my humour.
[Myke] And very noteworthy.