The hallmark of The Hell is a very serious approach to development. First and foremost, it is concentrated on getting rid of all the initial bugs of Diablo & Hellfire. It also raises challenge considerably, gives much more variety (monsters, items, spells, boss monsters, unique items, item & environment colors), improves overall difficulty balance of the game, improves monster AI, introduces new character animations, increases replay value and gives full support for Multiplayer experience. It is the HARDEST of Diablo Hellfire mods. Nowadays we have version 1.90+ and it's fully functional, has many bugs of original game fixed, is running smooth, and on average is working way better than original game. The amount of changes is tremendous (trust me), part of them are available in Changes Log file inside archive.
Diablo: The Hell v1.90, for Diablo (PC/Mac), by Mordor and TH team
This is the newest version of Music expansion - version 4.0 Its support will be added in the upcoming The Hell version 1.90 But it will work if installed...