ok churchyreal,the parts are as follows...
Alto,tenor,and baritone,and then bass.
the exceptions are: soprano,or a high tenor,or alto,or a true bass.
i'm in a male chorus,and we can sing it all,but,we have a good chemistry,as to where we listen to each other,and truelly harmonize with each other.
open with prayer,and always close in prayer,and take all things to God first,you'll be ok,just trust.