Since I couldn't find any complete OST from recent games of Taiko no Tatsujin, I decided to rip the music myself directly from the games. Extracted and converted from WiiU Games using NUS3BANK-Editor (By DanSyor) and from 3DS using HackingToolkit3DS (By Asia81) and converted to Mp3.

Here is the link: https://mega.nz/#F!m5IS0ZyB!NODVREyC8wBKuxNpzKW7Jg

You can find on this package:
-Taiko no Tatsujin WiiU;
-Taiko no Tatsujin Tokumori;
-Taiko no Tatsujin Chibi Dragon to Fushigina Orb;
-Taiko no Tatsujin Don to Katsu no Jikū Daibōken;
-Taiko no Tatsujin Dokodon! Mystery Adventure;

The OST of these games are not 100% complete, as I couldn't manage to obtain the music from the DLC's. Also the BGM from the various story modes are missing, expect for Chibi Dragon to Fushigina Orb.
Also, the tracks are not named sorry.