I've received as gift a hollow natural cow horn, similar to those anciently used for signaling before metalworking was discovered.
I'd like to know if, given it simplicity (natural carved material creating a conical tube) the tone/frequency it has is fixed and given by its physical characteristics (such as length and inner diameter) or if it also depends by the technique used, like embouchure or something else.
I'd like to be able to play it with a way lower tone/pitch (if the software I used is not wrong, it is a F#/Gb8, I'd prefer a F7 or lower), hence my question.
I am not a musicist so I apologize if I misspelled or misused any terms.
Here attached is a screenshot of the sound spectrum (frequency vs time) produced by me playing it.