The volume of each FM-Drum (Jus not the PSG) can be set with the second option of the FM-Drumset menu. With the cursor keys up / down a certain drum can be selected and with the cursor left and right the volumes resp. lower and higher.
=== Edit Drumrreauencv ===
If you choose this option, you can adjust the frequency of the FM-Drums so that it sounds best. For example, you can make the bass drum sound a bit lower or the tom a bit higher. You will first be given a choice of 3 drum sets. You can set this for which Drum Set you want to adjust the frequency. The standard drum set (with which a song will always start) is Drumset 1. You do not need to set this in the music editor. After selecting the right drum set, you can increase or decrease the frequency for each channel. The drums are distributed over the channels as follows: Bass drum Channel 7 Snare drum Channel 8 Tom Channel 9 Cymbal Channel 8 and 9 Hi-Hat Channel 8 and 9 So if you raise (or lower) a channel, the other drums present on the same channel change. The frequencies can be adjusted in large steps (per octave or in smaller steps (per frequency step) with the [CTRL] and cursor keys left / right. With [CTRL] above / below the frequencies can be increased in steps of 10 or lowered. You can use the function keys F1 to F5 to play the FM-Drums. See the key overview for which function key stands for which FM Drum. The [HOME] key resets the frequencies to the default settings of Moon Blaster.