Thank you again! I didn´t know that Safari doesn´t support .ogg, and in Mac I have had only tried with Firefox and Chrome where it plays correctly. I have now tried in Safari and yes, the music is not playing . For the sounds both .ogg and .m4a are there (altough some sound weird in Safari) but because the game was meant to be played online I only put the .ogg files to make the game data as small as possible. I will put the .m4a music files there when I update the game. In the meantime I can suggest you playing in another browser.
Again thank you for playing and for spotting this problem! :)