<human>:  What chords should I use for a beginner's blues piano song?
<bot>: Most beginner blues piano songs use basic triads and seventh chords built from the same three major or minor scale notes, often referred to as a I-IV-V chord progression. Depending on the type of sound you're going for, you could use some variation of I-IV-V-IV, I-IV-V-i, or I-vi-IV-V chords in a variety of major or minor keys.