Does Soul have a brother?

Soul's older brother, who is introduced through one of his flashbacks in Chapter 55 of the manga. Wes seems to show interest in Soul's Weapon abilities. Soul seems to hold a high respect for Wes as he often remarks that Wes's musical abilities are far above his own. That said, Wes is also known as being a talented violinist. However, although Wes is shown to care for his younger brother, Soul primarily sees him as an object of great jealousy. Soul sometimes feels that he became Maka's partner to escape from his jealousy of Wes. Soul cannot seem to be able to reciprocate Wes's kindness towards him, and remains a little detached from him. However, he does at least, share a mutual understanding with him.

Wikipedia! :D

Yes, Soul does have a brother.
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Yes, Wes is Soul's older brother and he is a complete douche >.<
he is excellent at violin and is more known than Soul and his piano. He is mostly only known as Wes's brother outside of the DWMA. He doesn't have any weapon like powers though. Infact, their family was surprised when they found out Soul had weapon blood.
Once you read further in the manga you will read about him. I am not sure if he is in the anime yet.. I believe he should have been, but you know, they have changed so much Bettendorf the manga and anime.

Yes, Wes is Soul's older brother.He's a violin player, and, even though he encourages Soul in playing the piano and (take note)does not take part with their sibling rivalry (which was due to Soul's silly inferiority complex), Soul still thinks otherwise.

yes he does

He does have a brother named Wes Evans. He only appears once in the manga. apparently, Soul is jealous of him