Yamaha PLG150-DX Owner's Manual page 12

Operations /
Editing a DX Voice
c Store the edited settings as a Custom voice, then save it with
other edited voices as a DX Cartridge File.
Use the Store operation to store your newly edited voice. Then use the Save oper-
ation to save that edited voice with other Custom voices to a DX Cartridge File.
Both the Store and Save operations are necessary to ensure that your voice is
saved properly. Failing to do so would be roughly similar to writing a letter but not
putting it in an envelope. Make sure to execute both operations when you wish to
keep a voice you've edited.
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