O.K. , I'll go along with your wish and list only some soft or romantic or dreamy ones , nothing heavy based on your desire and criteria :
Just remember that listing ten is almost impossible , yet I'll list some randomly of my top 50 or so and it's only based on my taste . Also , from your question tone , I assume that solo icons of (Rock N Roll) like Elvis or Chuck and Blues legends like Johnson or Waters for example are not to be listed :
[1] No Quarter -----> LED ZEPPELIN
[2] Little Wing -----> THE JIMI HENDRIX EXPERIENCE
[3] Calling Card -----> RORY GALLAGHER
[4] The Sun Goes Down -----> THIN LIZZY
[5] Child In Time -----> DEEP PURPLE
[6] Riders On The Storm -----> THE DOORS
[7] Tales Of Brave Ulysses -----> CREAM
[8] Comfortably Numb -----> PINK FLOYD
[9] Heart Of The Sunrise -----> YES
[10] Planet Caravan -----> BLACK SABBATH
...ETC.