"What a Wonderful World" made famous by Louis Armstrong. A while ago my teacher handed out an arrangement for easy piano. The LH has easy fillers. I like the song but the arrangement is rather boring so went to a piano store and got another arrangement.
"Blue Skies" by Irving Berlin in 1928. It's a nice song that is rather melancholy. The lyrics is positive and optimistic but the song starts off in Em.
"Sound of Silence" by Simon & Garfunkel in 5 verses.
"Imagine" by John Lennon. It's a nice song written during the Vietnam War as a protest song. Some Christians find the lyrics offensive talking about no heaven, no hell & no religion. Besides that I like the song. An alternative is "Blowing in the Wind" by Bob Dylan.
"Over the Rainbow" by Harlen & Arburg. A version was sung by Judy Garland in the movie "Wizard of Oz".
"Climb Ev'ry Mountain" from the musical "Sound of Music".