Another spin and probably more on point - you are only using triads which tend to sound upbeat in their own way.
Take your progressions and now turn the chords into dominant 9ths and m7 or m9:
E.G.
Your progression is C-Am-Dm-G
C ~ C-E-G
Am ~ A-C-E
Dm ~ D-F-A
G ~ G-B-D
[mp3]http://www.bandcoach.org/fp/audio/sexyBeats-01.mp3[/mp3]
change it up and make it:
C[sup]maj9[/sup]-Am[sup]9[/sup]-Dm[sup]9[/sup]-G[sup]9[/sup]
C[sup]9[/sup] ~ C-E-G-B
Am[sup]9[/sup] ~ A-C-E-G-B
Dm[sup]9[/sup] ~ D-F-A-C-E
G[sup]9[/sup] ~ G-D-B-F-A
[mp3]http://www.bandcoach.org/fp/audio/sexyBeats-02.mp3[/mp3]
then look at substitutions that are useful or alternative paths to the same final chord; the latter might change
the progression above into
C / C[sub]/B[sup]b[/sup][/sub] / | Fmaj7[sub]/A[/sub] / B[sup]b[/sup][sub]/A[sup]b[/sup][/sub] / | Am[sub]/G[/sub] / G[sup]7[/sup] / | C[sub]/G[/sub] / G[sup]7[/sup] / :||
C[sub]/B[sup]b[/sup][/sub] ~ C-E-G with a B[sup]b[/sup] in the bass
Fmaj7[sub]/A[/sub] ~ F-A-C-E with an A in the bass
B[sup]b[/sup][sub]/A[sup]b[/sup][/sub] ~ B[sup]b[/sup]-D-F with an A[sup]b[/sup]in the bass
Am[sub]/G[/sub] ~ A-C-E with a G in the bass
G[sup]7[/sup] ~ G-B-D-F
C[sub]/G[/sub] ~ C-E-G with with a G in the bass
[mp3]http://www.bandcoach.org/fp/audio/sexyBeats-03.mp3[/mp3]
also take a look at this older thread about the same topic
https://www.futureproducers.com/for...posing-sound-design/setting-sexy-mood-418998/