Passage Summary: Amanda only writes two kinds of music. One of those kinds usually has very few chords. So, if her next song isn't the first kind, it's probably going to be a simple one.

Conclusion: If Amanda's next song is not a blues song, it will likely have three chords or fewer.

Reasoning: Amanda only writes two types of songs—blues and punk—and the majority of punk songs use no more than three chords.

Analysis: This argument uses a simple 'either/or' structure combined with a probability. It establishes that there are only two possibilities (A or B), and since B usually has a certain characteristic, anything that isn't A is likely to have that characteristic. Look for an answer choice that limits the options to two categories and applies a 'most' or 'usually' rule to the second category.