FINDING THIS SONG

I just wanted to know the song that is included in epi6 and epi8 which is actually a poem written by Christina Rossetti which is Up hill. Why the hell make sing it into a song then not release it in youtube whoever sing that :<<<
please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please please let me know

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