LotR/Hobbit soundtracks – purely instrumental

Out of the Lord of the Rings and the Hobbit movies, a number of tracks contain the voices of the singing actors, like:
LotR 1, Complete Recordings, track 3 "Bag End" – where Gandalf sings "The Road goes ever on and on"…
LotR 1, Normal version, The Breaking of the Fellowship / In Dreams – the singing boy
any many more

Other have a choir like:
LotR 3, Complete Recordings, track 4-1 "Mount Doom"

Does anyone have a version of that are purely instrumental (for the singing and/or the choirs) (either isolated somehow or even better purely original)?

Thanks