Sure, here are some harmonica songs that would be great for a bluesy playlist:

1. "On the Road Again" - Canned Heat
2. "Juke" - Little Walter
3. "Mannish Boy" - Muddy Waters
4. "Baby, Scratch My Back" - Slim Harpo
5. "The River" - Sonny Terry & Brownie McGhee
6. "Blues With a Feeling" - Little Walter
7. "I'm a Man" - Bo Diddley
8. "Got My Mojo Working" - Muddy Waters
9. "Help Me" - Sonny Boy Williamson II
10. "Boom Boom" - John Lee Hooker
11. "Hoochie Coochie Man" - Muddy Waters
12. "Big Boss Man" - Jimmy Reed
13. "Bright Lights, Big City" - Jimmy Reed
14. "Smokestack Lightnin'" - Howlin' Wolf
15. "Bring It on Home" - Sonny Boy Williamson II
16. "I Got Love If You Want It" - Slim Harpo
17. "Take Me Back" - Big Bill Broonzy
18. "One Way Out" - Sonny Boy Williamson II
19. "Hard Hearted Woman" - Walter Horton

Remember, the blues is all about feeling and expression, so enjoy the soulful sounds of these harmonica classics!