“Wolfgang’s Whistle” was adapted from a Mozart piano sonata. Learning to play "Wolfgang's Whistle" on guitar gives you a great chance for practicing minor arpeggios; it contains major arpeggios, too. Actual pieces of music often mix minor and major, so this is a chance to hear how the two qualities interact.
As you can see in the following music, “Wolfgang’s Whistle” uses minor arpeggio patterns #1 through #4. The rests after each five-note ascent allow you to shift positions easily so you can set up for the next pattern.
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Wolfgang’s Whistle