What are the basic beliefs and styles of worship in Messianic Judaism or Judeo Christianity?

Yes, though it's hard to come up with ones that they all have in common. One of them is a serious respect for the Hebrew language which you will not find in any Church. Every Messianic group honors Jesus though they most often use the Aramaic and/or Hebrew form of his name, not the anglo-greek from of Jesus. As for the styles of worship, the most common ones are what would be comfortable for someone raised in non-Messianic Judaism.