A musician deals with sound. Their sound is their signature, their identity, their voice which facilitates communication of their message. It is something that stems from inside and it distinguishes you from anyone else.
What is not widely recognized is the fact that your sound is a reflection of what you hear internally before you play the note. Practice hearing the note mentally before you play it. Or practice humming the note while playing it, and what comes out will sound more like you.
If you seek to change your sound for any reason (warmer, brighter, darker, less effort, more projection), first change yourself. Internal change always precedes external change, and your sound will change without effort as you change yourself first.
‘jes sayin’ 🙂