Final answer:
Igor Stravinsky liked to place titles at the end of his pieces so the listener would have no preconceived ideas, in contrast to the practice of his Romantic counterparts.
Step-by-step explanation:
The composer who liked to put titles at the end of his pieces to allow the listener to approach the music without preconceived ideas was Igor Stravinsky.
His method was part of his modernist approach to composition. Stravinsky's innovative works, like The Rite of Spring, often challenged listeners' expectations by breaking away from traditional harmonic and rhythmic norms of the time.
This approach was quite different from that of Romantic era composers like Beethoven and Wagner, who, despite pushing many boundaries themselves, were much more closely tied to established forms and harmonic progressions of their period.