These are all the tracks from Homm 5 I found on soundcloud, and i'm pretty sure this is every main track in the game and in all the expansions.

Heroes of might and magic 5

Peeeeeeeace

To celebrate the victory of the Elves on the Shadow Council, discover the Sylvan faction theme “The Elven Coronation” by Rob King & Paul Romero. More information on mmh7.com

Heroes VII - The Elven Coronation (Sylvan faction theme)

Heroes Of Might And Magic V  Sylvan Town Theme Music

Heroes Of Might And Magic Ⅴ - Sylvan Waiting For Turn Theme - OST

Heroes Of Might And Magic 5 - Main Menu Theme

Heroes Of Might And Magic Ⅴ ~ Sylvan Battle Theme ~ OST

Heroes Of Might And Magic Ⅴ ~ Main Menu Theme (Tribes Of The East - Version) ~ OST

Heroes Of Might And Magic Ⅴ ~ Main Menu Theme (Hammers Of Fate - Version) ~ OST

Heroes Of Might And Magic Ⅴ ~ Haven Campaign Theme ~ OST

Heroes Of Might And Magic Ⅴ ~ Haven Campaign Theme (Hammers Of Fate - Version) ~ OST

Heroes Of Might And Magic Ⅴ ~ Dungeon Campaign Theme (Hammers Of Fate - Version) ~ OST

A theme from the Rampart Castle. Another song from the old game we all love. We are all still waiting for the Heroes 3 original soundtrack. 

Paul Anthony Romero - Heroes of Might and Magic 3 - Rampart

Heroes Of Might And Magic Ⅴ ~ Dungeon Campaign Theme (Hammers Of Fate - Version) ~ OST

Dysmea