sound is a vibration through matter. so realistically for you to hear it, it needs to go through the air. but if your asking about the path it takes which make it sound as it does than you need to be specific about the type of guitar acoustic Guitars will start at the string(s) into the hollow within the guitar out of the opening and to your ears electics start at the string into the pickups through your pedals out your amps then to your ears
Sound travels faster through materials with higher densities, like metals
Vibrations travel through the material, just as they would in air. How well they travel through depends on the material.
Sound cannot travel through vacuum, but unless there is sufficient insulation, sound might travel through the material the tube is made of.
the 'medium'
water
Denser material, higher speed.
Vibrations travel through the material, just as they would in air. How well they travel through depends on the material.
Sound and Light can travel through space.
Sound cannot travel through vacuum, but unless there is sufficient insulation, sound might travel through the material the tube is made of.
Sound (and vibration) are a wave system of sequential compressions and rarefactions of a material. These waves are mechanical and do need a substance through which to travel. They cannot travel through a vacuum.
Sound can travel through all matter. The speed at which it travels depends on the density of the material.
a fanny
Solids
water
the 'medium'
Spongy materials are the most difficult for sound to travel through. Vacuum is the best acoustic insulation but it doesn't really count for the purpose of this question, since it is not a material but a lack of material.
Denser material, higher speed.
Sound can travel through most substances but the loudness depends on the substance.