> For an internet encyclopedia to require references to dead tree sources is a failure.
It doesn't require references to dead tree sources. Wikipedia policies -- particularly http://en.wikipedia.org/wiki/Wikipedia:Verifiability -- require that material be sourced to reliable, previously published sources, but does not require that those sources be "dead tree" sources.
> For example, my country haven't got any music press that isn't a joke, should it mean that no music articles should be allowed?
Not per Wikipedia policy, since no policy limits sources to the any particular country.
Reliability can be disputed. If you aren't backed by dead trees you can always be outpowered by some relentless deletionist who just would not let it go.
Well, why would other countries' sources write about our local bands?
It doesn't require references to dead tree sources. Wikipedia policies -- particularly http://en.wikipedia.org/wiki/Wikipedia:Verifiability -- require that material be sourced to reliable, previously published sources, but does not require that those sources be "dead tree" sources.
> For example, my country haven't got any music press that isn't a joke, should it mean that no music articles should be allowed?
Not per Wikipedia policy, since no policy limits sources to the any particular country.