There are a lot, try reading the chapter again and looking at some familiar devices
<span> 1.Nutcracker Suite
<span> 2.The Sorcerer's Apprentice
</span><span>.3. The Rite of Spring
</span><span>.4.Intermission/Meet the Soundtrack
</span><span>.5. The Pastoral Symphony
</span>
</span>
Answer:
He should erase his memory card.
My opinion of what a literary detective would search is mostly classic things like Beethoven or something that would interest someone for something that happened long ago.