Copyright protection - where is the border?

The Czech republic is one of the countries, where illegal copying of music, software etc. happens in large scale. There for the protection of copyrights and generally of the intelectual property is a hot issue in our country.
I am a big music fan and I understand that the artists deserve certain protection of their production, anyway it's what they sell for their living, but very often I doubt that this fight for copyright protection has anything to do with the artists.
Yesterday I have read an unbelievable article saying that the Music Publishers' Association (MPA) is now fighting against web servers, which offer song chords and tablatures to download. In my opinion this is absolutely ridiculous, and unfortunately instead of protection this is an attact against the music itself.
I am learning to play guitar and I have downloaded chords and tabs for many songs which I like and which I would like to learn to play. It helps me very much in my effort. If I did not have the chance to download them, I could never learn these songs, because even if I was willing to buy the tablatures in a shop, i could hardly find any of those. So if the guys from MPA succeed, people like me won't be able to learn to play my favourite songs. Wonderful "protection of music", isn't it?
I can only support the reaction of one of the main tab servers, ultimate-guitar.com:
"At what point does describing how one plays a song on guitar become an issue of copyright infringment? This website [and tablatures], among other things, helps users teach eachother how they play guitar parts for many different songs. This is the way music teachers have behaved since the first music was ever created. The difference here is that the information is shared by way of a new technology: the Internet"... not much to add...

One association with this topic: There has been a campaign in the Czech republic with a motto "Copying kills the music". Recently I have heard a paraphrase, which I like very much: "Copying kills just the bad music, it helps the good one". I think that this decribes the current reality in the music business in a brilliant way. An example:
As I have said, I am a music freak and I dare to say that I have already heard a decent amount of albums. I could never afford that, if I had to buy all of them. But thanks to getting to know so much music I have already shaped my taste and there are some album, which I know that I am going to like in many years from now. Therefore I buy these albums, even though I have their copies or mp3 files, simply because I want to have not just the music itself, but the whole album including the booklet and original CD (speak nothing of the sound quality mp3 vs. CD). But this of course work only for good music, which you can listen to hundred times and there is still something to discover. If the music is produced with the purpose of becoming a big hit and then being forgotten after few months (simply because there is nothing in it to listen to over and over), this music is certainly threatened by copying - people, who purchase an illegal copy throw it away after one month and they would be fools to buy an original CD.
It is funny, how illegal activities can point at the differences between real music made by musicians and plastic sound products made by marketing experts. Wanna proof? Just look, what musicians are the propagators of the anti-copying campaign and which musicians are encouraging people to download music and make copies...