Today I am going to explain, analyse and illustrate the elements of a music ensemble. To do this I am going to take the basic construct of a rock band.
In this style of music, the basic shape of a band is often drums, guitar (rhythm and lead), bass and vocals. Sometimes this is supplemented by a keyboard or synth player but for the purpose of this analysis I will keep to to the bare basics. Explanation done.
Now when coming to analysing the elements I will do each individual instrument in turn. Drums. These are the core of the band, keeping time and providing a skeleton structure for the other instruments to build on and grow. If the drummer makes a mistake it is incredibly noticeable due to how exposed they are compared to the rhythm and bass guitar. The bass needs to work very closely with the drums, if not in unison then the two musicians must listen to each other and make sure their individual parts are well oiled and tight. With that in mind, two virtuoso musicians could play together and sound mediocre due to not listening to each other. The rhythm guitar is there to add support to the bass and drums, a higher, more treble driven sound. The lead guitar is there to embellish, to ‘add the icing on the cake’ that is the bass, drums and rhythm guitar. So if the song has a bridge section the lead guitar might take a solo and the support for this will be provided by the other musicians. Now the vocals are a whole separate matter. They add the ‘flavour’ to the musical ensemble as a whole, and they can be much more free while still fitting in with the bands style.
To illustrate this I have taken ideas from this article: http://www.biteyourownelbow.com/bandstyle.htm It contains well thought out analysis of how to play together ‘in style’. Although these are not the exact words of the question in mind it displays how to perform and arrange music as a band and I personally believe that this is an imperative ability for any band/musical ensemble.