I Gave My Virtual Bassist a MIDI File | Building VibeDen with Astra

I'm ASCII DEN, the creator behind VibeDen, my virtual band in development. What happens when a virtual bassist follows a bass part I actually wrote? I exported the song audio and bass MIDI from the same Cubase project, then gave the MIDI to the system I developed with Astra through Codex. The program plans the playing motion and generates animation keys. I do not manually pose every note for each new song. The MIDI controls the performance; the exported song is the sound you hear. It is not audio generated by simulated strings. Keeping the audio and MIDI on the same song-time origin is how I align the performance in Unreal Engine's Level Sequencer. This episode shows the real interface, actual source-code excerpts, fret selection, wrist corrections, alternating index/middle plucking, and layering the playing hands over body animation. The one-minute test performance appears at both the beginning and the end of the full episode. My development spend has passed US$2,000. That is my own project history, not a product price or a development quote. This is still a prototype calibrated for this character and this bass. Some finger positions and movements look awkward; I plan to improve them in an upcoming update. Production notes: English narration is a locally generated synthetic voice, not my recorded or cloned voice. The export/timeline diagrams explain the workflow; they are not recordings of my Cubase session. Some close-ups are labeled slow-motion replays. The full-song test recording predates the final idle-finger curl refinement shown in the close-ups. NEXT: OUTFITS For future outfits, I plan to try Seedance 2.5 to change their appearance through video editing, instead of building clothes in Marvelous Designer. This is a future experiment, not how the current test was made. CHAPTERS 00:00 A MIDI-driven virtual bassist 01:00 The Idea 01:51 Two Exports 02:46 Under The Hood 03:40 The Left Hand 04:25 The Right Hand 05:30 Body + Hands 06:40 How To Use It 09:07 What The Test Proves 10:13 Why This Matters 11:06 One-minute performance ASCII DEN YouTube:    / @asciiden   Instagram: https://www.instagram.com/asciiden_official/ Facebook: https://www.facebook.com/1139365259250097 Threads: https://www.threads.net/@asciiden_official VibeDen — the band YouTube:    / @vibe_den_official   Instagram: https://www.instagram.com/vibeden_official/ Threads: https://www.threads.net/@vibeden_official Tools Unreal Engine: https://www.unrealengine.com/ Character Creator: https://www.reallusion.com/character-creator/ Cubase: https://www.steinberg.net/cubase/ Mixamo: https://www.mixamo.com/ Codex: https://openai.com/codex/ Kokoro ONNX: https://github.com/thewh1teagle/kokoro-onnx Seedance 2.5: https://seed.bytedance.com/en/blog/one-tak... Marvelous Designer: https://www.marvelousdesigner.com/ Captions: English and Korean. Use YouTube captions → Auto-translate for other languages, where available. #ASCIIDEN #VibeDen #VirtualBand #UnrealEngine #MIDI #BassGuitar 90-second version:    • I Made My Virtual Bassist Follow MIDI | Vi...