Does Notator run with MagiC, Geneva or MultiTOS?
No, Notator was designed long before these replacement operating systems were available and will not work properly with any of them (if at all). As with the Atari ST hardware, Notator is highly dependant on standard TOS (The Operating System). The reason for all of this is because Notator relies on certain programming routines in TOS, some which are bypassed and enhanced to make it the powerful MIDI system it is. Use Notator only with plain TOS. The latest one available is version 2.06, but Notator works with just about all TOS versions though it is advisable to upgrade if you have a really old one since these contained a lot of bugs and several functions were not present as they are with the later versions. But if it works for you and you’re happy with it there is no need to change! Upgrading TOS is a matter of exchanging the ROM/EPROM chips inside the machine and usually means that a qualified technician has to do the job.