Again, your terminology points to your seeming desire to throw out the OT in its entirety. Ephesians 5:19 and Colossians 3:16 have not replaced Psalms 149 and 150. Those epistles appear in the NT. They came under the new covenant.
The NT has not replaced the OT. The new covenant has replaced the old covenant. Surely you understand the distinction.
I am very interested to know where Scripture says otherwise.
Let's see if we can agree on something. Do you agree that the command to sing in both Ephesians and Colossians is a command of the new covenant?