There are covers for many of those songs, all instrumental, performed by Toots Thielemans. Since you seem to remember the harmonica solos, I wonder if that's his performances were being used for the loop.
It's interesting to see what songs they selected for each location -- guessing the Tatooine Meet and Greet actually had bounty hunters, considering the tracks are Zam, Jango or Boba Fett related.
Wish the "to follow" lists were completed.
Pecos Bill - Frontierland
Touch the Sky - Fantasy Faire
Bibbibi-Bobbidi-Boo - Fantasy Faire?
Still have not found any place in Disneyland's Frontierland playing this version of Pecos Bill. It's not from the area music.
Touch the Sky - Played at the Fantasy Fair exteriour...
"The Throne Room" may also be a track from the Star Wars soundtracks (so, representing Star Tours, where the on-ride portion just uses edits of the original soundtracks for underscore).
"The Cleaner" might be from Toy Story 2, as a song that was originally used for the Bay Area of DCA. Though...
Unfortunately, the Official Albums really didn't sell that well (nor does Disney Parks Audio, look at Disneyland/WDW Forever), so it does make sense why Disney had pulled back on releasing that particular souvenir type. Physical media, unfortunately, is well on its way to Yesterland as well...
If you don't have them already, they should still be selling the "Music of Cars Land" and "Carthay Circle Sessions" CDs. Unless you're looking into buying a lot of CDs to reassemble the newer area loops and whatnot.
Looks like Disney Dreams pops up whenever the Philharmagic loop has track from Return to Neverland. A case of it just being "well, that's Peter Pan-like, but I don't recognize it from the original soundtrack?"
You're lucky you just started this project now. The Fantasy Tower actually went through 3 different loops in less than a year (turns out, those loops still exist in some portions of the hotel, such as Goofy's Kitchen and the exterior/valet of the Hotel). So, if you're trying to get all of the...
Unfortunately, Disney doesn't have a lot of properties that are westerns anymore... not any that Guests would readily recognize and get them in the mood of a Frontier experience. A lot of the songs played in that tower were used in the 1995-2011 Frontierland in-park loop, as well.
From the old Disneyland Music Loops thread:
Based on a 1997 live recording of the attraction can confirm two of the songs that were played during the latter years, and source albums.
"Chicken Pickin' Rag" and "Down South" -- both performed by the Banjo Kings (by Good Time Jazz records... same...
I think the "don't say I don't know" thing used to mean... work with the guest and find someone who does. Do the job right. Instead, people decided to make it "just make something up. They're tourists, what do they know?"