Noticed this too and was even looking for something that even referenced as in: “See A4 Reference Manual”, but perhaps this has had something to do with the delay in retailers having any clue now when AK will ship? I would think the Multi Map stuff from newer A4 manual would cover same as AK but with added functions of being able to use the keys to control (not sequence, I get that) other synths, while in-fact and for instance, the AK sequencer is running from internal engine has me a bit perplexed about some missing specs on AK.