That's my case too. I hype a lot with WiiU games specially those I find appealing like Splatoon. In my case I do not have the WiiU either. But maybe you will get the game very soon. Just work out little things. It's not much. And yes I think that was the special CD for Mother here, Mother 2 over there in Japan. Here some wiki info:
The NES was only able to play three notes at a time, which Suzuki has noted greatly limited what he was able to produce, as he could not create some of the sounds he wanted. Melodies and themes from some pieces from the soundtrack were reused in the other games in the series. ("Pollyanna", "Snowman", and "Eight Melodies" make an appearance in all three games.) Some of the music from the game was recorded as a studio album by Suzuki and Tanaka in collaboration with various artists entitled Mother. The album was released by CBS/Sony on August 21, 1989. It consists of eleven tracks, seven of which are English vocal arrangements of songs from the game created by Suzuki,
David Bedford, Takeshi Saitoh, and
Michael Nyman. The lyrics to these arrangements were written by Linda Hennrick, and each one was performed by a different artist or group such as Catherine Warwick and St Paul's Cathedral Choir. The album cover shows the word "MOTHER" in a shade of brown over a red background; the letter "O" of "MOTHER" is replaced by an image of planet Earth, also with a brownish tinge. The soundtrack was reissued on February 18, 2004 by Sony Music Direct with its tracks digitally remastered, a song from EarthBound entitled "Smile and Tears" was added, and the track "The World of Mother" was replaced with a version that is six minutes longer.