Think of it like a wave.
If you threw a rock into a pond, the splash makes waves. The water is only moving up and down as the wave passes bye, only a little water is moved horizontally when the stone hits, the 'wave' is the motion transmitted without the water going anywhere.
Similar thing with electrical waves in a wire. The current in a music signal is a form of alternating current(a wave movement, where Direct Current is like a straight line movement), so the electrons pretty much stay in the same place in alternating current. Just the waveform moves down the wire.
The waveforms can be extremely complex. So if the music of an orchestra is being transmitted, the wave form of the sound of each instrument is added together and all of them, together, are travelling in a very complex wave through the wires to where they are going.
Electrical current in a wire is a complex phenomonon. The frequency of the waveform determines how the wave travels. The higher the frquency, the more the wave stays on the top surfaces of the wire. (each strand if multi-stranded) So the wave passes down the wire mostly on the surface, with varying degrees of penetration into the wire depending on the frequency. So wire can make a difference in how well the signal (the waveform) travels without getting messed up. The electrical energy also generates a field around the wire, and that field can affect, or be affected by it's surroundings. So good insulation on the wire also helps the waveform to reman intact.
Badly made wires can distort the waveform by slowing down some frequencies of the waveform slightly, and insulation can also affect the waveform. because as the waveform passes, it is affected by the insulation, and also the surface of the wire. (if the wire is dirty, or corroded, or is not pure, it interferes with the signal too)
All of those 'errors' in the transfer of the signal down the wire as a waveform are extremely tiny, so some folks say wire is wire, and other sayy different wires change the way the music sounds, because the wires affect the wavefoms a tiny (but significant bit)
Hope this helps.
If you threw a rock into a pond, the splash makes waves. The water is only moving up and down as the wave passes bye, only a little water is moved horizontally when the stone hits, the 'wave' is the motion transmitted without the water going anywhere.
Similar thing with electrical waves in a wire. The current in a music signal is a form of alternating current(a wave movement, where Direct Current is like a straight line movement), so the electrons pretty much stay in the same place in alternating current. Just the waveform moves down the wire.
The waveforms can be extremely complex. So if the music of an orchestra is being transmitted, the wave form of the sound of each instrument is added together and all of them, together, are travelling in a very complex wave through the wires to where they are going.
Electrical current in a wire is a complex phenomonon. The frequency of the waveform determines how the wave travels. The higher the frquency, the more the wave stays on the top surfaces of the wire. (each strand if multi-stranded) So the wave passes down the wire mostly on the surface, with varying degrees of penetration into the wire depending on the frequency. So wire can make a difference in how well the signal (the waveform) travels without getting messed up. The electrical energy also generates a field around the wire, and that field can affect, or be affected by it's surroundings. So good insulation on the wire also helps the waveform to reman intact.
Badly made wires can distort the waveform by slowing down some frequencies of the waveform slightly, and insulation can also affect the waveform. because as the waveform passes, it is affected by the insulation, and also the surface of the wire. (if the wire is dirty, or corroded, or is not pure, it interferes with the signal too)
All of those 'errors' in the transfer of the signal down the wire as a waveform are extremely tiny, so some folks say wire is wire, and other sayy different wires change the way the music sounds, because the wires affect the wavefoms a tiny (but significant bit)
Hope this helps.