DESCRIPTION:
This video contains songs showcasing Michael's changing voice, which happened thoughout late 1972 ( I'd say around September 1972), abd throughout the whole year in 1973. (This is my opinion!!) The songs I have listed are as following (and I will put the year and month if I can tell.)

1.) I'll Try You'll Try (Maybe We'll All Get By) (I'd say October 1972)
2..) Corner of the Sky (September 1972)
3.)The Boogie Man (October 1972)
4.) Hallelujah Day (December 1972/Janurary 1973)
5.) Skywriter (Janurary 1973)
6.) Touch (Feburary 1973)
7.) Euphoria (September 1972)
8.) Happy (September 1972)
9.) Music and Me (October 1972)
10.) With A Child's Heart (December 1972)
11.) Morning Glow (Janurary/Feburary 1973)
12.) Johnny Raven (Janurary/Feburary 1973)
13.) If 'N I Was God (April 1973)
14.) Reflections (October 1972)
15.) Don't Say Goodbye Again (July/August 1973)
16.) It's Too Late to Change the Time (July/August 1973)
17.) Hum Along and Dance (July/August 1973)
18.) Mama I Gotta Brand New Thing (Don't Say No) (July/August 1973)
19.) Get It Together (July/August 1973)
20.) Dancing Machine (July/August 1973)
21.) Buttercup (October 1973- December 1973)