Lmno

Spoken: Hello, children. It’s time for an important lesson with Professor Flans. This is
four letters that people sometimes confuse for one: L M N O!
[I play this on the keyboard, so here are the tabs notes and the actual notes]
  G Bb C D C Bb G Bb C  Bb G
E--------------------------------|       
B--------------------------------|       
G--------------------------------|    4x 
D--------0-----------------------|       
A---1- 3---3-1-----1--3-1--------|       
E-3-------------3----------3-----|       

  G Bb C  D  G Bb C D D   G Bb C D D D  D D D D D
E----------|------------|------------|---------------------| 
B----------|------------|------------|---------------------| 
G----------|------------|------------|---------------------| 
D---------0|--------0--0|--------0-0-0|-0-0-0-0-0----------| 
A---1--3---|---1--3-----|---1--3-----|---------------------| 
E-3--------|-3----------|-3----------|---------------------| 

The notes for the “ohhhhhhh... L M N O" part are like this:

D F G A G F D F G F D   4x

Then back to the first thing and then the second thing and then the third thing and then
first thing! Do it on the keyboard if you can.