Hi your guitar action could be way too high and your slapping the strings downward against the frets , or your strings are too low and they rattle.And either way when you slide up the neck, it squeeks. And you need your neck balanced.
Try this test.....bend the high E string at the 5 th fret....also called the A note. Bend that A note up to a B note, if your fingers slip off the string....over the top...then your strings maybe too low.And your rattleing your frets.
This can cause your strings to play out of balance and not in true tune.
It can cause what's called intonation. If the strings slightly rattle or buzz while your pressing down, then they are rattling off the fret a 1/2 step higher. So this can cause you to also play somewhat out of tune......so you then end up with a huge headache, trying to figure everything out.What happens is your trying to figure out 1 problem when your may be having 2 problems at once.
Also you didn't say if your guitar is electric or acoustic, it makes a lot of differnce but I can;t offer advice unless I know which type of guitar it is and the type of strings you use .
You may want to try strings that are less brassy if it's an acoustic guitar.
Great guitar players can play the Martin SP 80/20 brassy acoustic strings .012 to.054, but beginners have a hard time with them because they take more control, even though they sound better.
So Martin Marquee Light gauge would be better for a beginner. It's really a matter of feel and control to get the sound you want with strings.
Or on an electric guitar try moving up to D'addario Chrome 11's, your strings will be a lot more fuller in sound.
Another trouble spot could be on an electric guitar that your guitar pickups are not balance right and one of the pickup's is smoking hot and the treble is going way overboard.Then that pickup may need to be lowered.But lower it very slowly and only make slight 1/4 turns as you adjust it with your guitar plugged in so you can hear the difference...just don't panic, and make very slow corrections...it could take 30 minutes or more maybe even up to 2 hours , depending on the sound your looking for.
On most solid - Les Paul Guitars, and jazz and hollow-body electric guitars it's the back pickup that causes the most trouble.If it's too high up towards the string..........you're going to pick up every noise your fingers make on the strings.
Anyways......there's many reasons why you could be having trouble......test your guitar and see if anything I described is happening......also check your treble on your amp or guitar processor and see if your treble is run wide open...sometimes that will do it also.
All in all........it sounds to me like the problem is the neck needs adjusting...I think what you're describing is your bass strings skreech as you make a slide up the guitar neck.
To me that sounds most likely like your strings are way too high....anyways...I make all my own guitar adjustments myself and have done this for many years, but I am a professional. So if you don't know what you're doing take the guitar in to the Guitar Center near you and have their guitar tech look it over.
Like I said....your strings could be too low.................there's no way to tell with out seeing you guitar.....
Hope this helps....
Thanks Jordan Rivers .....
http://jordanriversguitarforum.blogspot.com/.
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