Unforgotten is the 17th piece in the Halo Legends Original Soundtrack. It is a rearrangement of Unforgotten from the Halo 2 Original Soundtrack. The most noticeable difference is audible in the part of the second violin, which deviates little from that of the first violin in the original, but explores a more distinguishable harmonal backing melody in the rearrangement.

It plays during the beginning of Origins II as well as the beginning and end of Prototype.

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