Lately I have been posting quite a few about Metallica's songs. And 2 out of 3 songs have the most comments(detail: Master of Puppets with 22 comments and For whom the bell tolls with 40 comments so far), so I think people will love this song.
Out of 3 instrumental pieces from Metallica, Orion is a very different piece to both Metallica's instrumentals and all other instrumentals.
Of course, for an instrumental song, there are absolutely no lyric(To live is to die doesn't count. James does not sing, he just read those lines) so the instruments in this kind of music must fill up for the space that vocalists left. Mostly other pieces use the same riffs with heavy beat to make this space filled up, but not for Metallica.
Metallica used the different riffs for different part, and only the first and second riffs are repeated twice, the rest of the song totally changes through time and absolutely does not have any repeated part, for both rhythm guitar and lead guitar. In this song, most of the people who listen to it will probably say "Hey, this song sounds familiar". It's because the melody after the bridge part. The tune of the song will go to everybody's minds without them knowing, and the melody will always be familiar. I learned this song for around 1 week and I can't get the tune out of my head, while my fingers keep running like on the fingerboard.
The drum is also a special part. In most other songs, Lars only break the beats in the end of every parts,
but in this song, Lars break it all the time. I, at first, always miss the break and lose the beat, but luckily, in a while I started to catch it and it becomes catchy.
But the most special part is the bass(Yeah... It's Cliff's). The bass sounds catchy, soft while still violent and rebellious. After the bridge, the bass' melody was very beautiful.
Anyway, hundreds of words cannot fill up the space of the ears. You should check the song out yourself.