It seems in audio record mode I can only record live playing, but not record a recorded pattern?
That is correct.
The Performance Recorder has three different functions:
__Audio Record - it can record your performance on the synth and whatever you plug into the A/D In directly to a USB flash stick connected to the “To Device” port. 74 minutes of continuous stereo recording is available. .wav Audio file is the result. You can play and sing and document your entire real-time performance.
__MIDI (Song) - it can record your performance on the synth as MIDI data to a linear construction, including the ability to Overdub, Punch In/Out. Song data is stored internally in the Data Utility > Song folder and can exported as a .mid (Standard MIDI File).
__Pattern - it can record your performance on the synth as MIDI data to 8 looping Scenes, 001-256 measures each. These Scenes are a combination of active instrument sounds, mix conditions and MIDI Track data that can be used in the construction of linear Songs by ‘Chaining’ the SCENEs into a linear time line (play order). Each Pattern Scene can be exported as a .mid (Standard MIDI File).
If you wish to export your MIDI Song or Pattern Sequence as audio, playback of the Song or Pattern Sequencer data will trigger the MODX Tone Generator, if you wish to capture this as an Audio Recording, the MODX delivers this audio output as Analog signal (to the Main L/R 1/4” Outputs on the back panel) and as Digital signal (to the Main USB L/R via the “To Host” port). You also have the ability to route specific Parts to isolated assignable Outputs (USB 1-8) via USB.
What you can do
Option 1: USB Record complex
Install your free copy of Cubase on a Mac or Windows computer... came with the MODX
Install Yamaha Steinberg USB Driver appropriate for your computer
Using MODX CONNECT “Drag and Drop“ the .mid sequence data from the MODX Data Utility Folder into a Cubase Project
Setup to render audio from your MIDI Tracks
Option 2: USB Record simple
Download an App (for your phone or tablet) that is able to record .wav data via Class Compliant usb connection. USB cable and adapter required.
Example: Yamaha Cloud Recorder App
Link: Yamaha Cloud Recorder App
Option 3: Analog Record simple
Connect your synths Main L/R Outputs to a handheld recorder with appropriate cabling.