Conversation so far:
Where did Bill Evans go to college?
After high school, in September 1946, Evans attended Southeastern Louisiana University on a flute scholarship.
Did Bill Evans graduate college and with what degree?
In 1950, he performed Beethoven's Piano Concerto No.3 for his senior recital, graduating with a Bachelor of Music degree, majoring in piano, and Bachelor's in Music Education.
When did Bill Evans enlist in the Army?
1951–54
Where was Bill Evans stationed while in the Army?
Evans played flute, piccolo, and piano in the Fifth U.S. Army Band at Fort Sheridan.
After the Army what did Bill Evans do?
Evans was discharged from the Army in January 1954, and entered a period of seclusion, triggered by the harsh criticism he had received. He took a sabbatical year.

Question: Did he start to produce music during that year?
Self-contained rewrite: Did Bill Evans start to produce music during 1954?