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The Yamaha TYU-30 is essentially a cut-down version of the TYU-40
with a "Music Cartridge" slot instead of the "Music Card"
slot. The TYU-30 lacks a pitch bend wheel and has only three
volume levels, but otherwise the two models are identical feature-wise.
Unlike the "Music Cards" supplied with the TYU-40, the "Music
Cartridges" actually contain a real ROM with stored music data, and
slot into the right-hand side of the rather fetching turquoise
keyboard. Songs are selected for playback in the same way, by holding
down the relevant numbered key while tapping the Start/Stop button, and
sound very similar to the TYU-40's Music Card orchestrations. The same
training modes are also available.
Two Music Cartridges were supplied with the TYU-30, and it seems
unlikely that any additional after-market cartridges were made. I have
never seen any. It should be noted that the Music Cartridges used by
the TYU-30 are completely different from those used by some PSR range
keyboards made around the mid to late 1990s. Many of these later Music
Cartridges were made, but they are not compatible with the TYU-30.
The TYU-30 sounds very slightly "brighter" and clearer than the TYU-40,
particularly the percussion sounds, presumably because there is less
agressive filtering of the output.
The built-in speaker is surprisingly good, but an aux output is
provided. Oddly, this is a mono 3.5mm jack, so only plays through one
speaker if connected to a stereo system.
The TYU-30 is a lovely-sounding little keyboard, but it's a pity there
are no additional Music Cartridges.
Here are recordings of
the 20 tunes on Music Cartridges A and B:
Music Cartridge A:
Music Cartridge B:
Been Working on the Railroad
Nocturne (has no percussion!)
The Beautiful Blue Danube
- Oh Susanna
the Saints go Marching In
Minuet (has no percussion!)
The Operating Manual for the TYU-30 can be downloaded from the Yamaha Manual Library
Inside the Music Cartridge
Here's a picture of a dismantled Music Cartridge for the TYU-30. Click
the picture for a high-resolution version.
Unsurprisingly, there is just one IC, and the outer package is much
larger than it really needs to be.