The current design is much less legible for a person who has actually learned how to play a piano, compared to the keyboard in Cambiare alpha, which resembles real piano keys. In order to make the keyboard more legible, as well as taking technical limitations on Cambiare beta into consideration, I propose the following design instead:

• Shorten the display length of each black key
• Add an additional scale between E and F.

And here's what my proposal looks like:

The middleware should add an filter to drop all invalid MIDI messages.

MSB 063 is device specific, and isn't just used by KORG KROSS.

Draft ideas

• Each channel/part has its own ACMP (accompaniment) state.
• Codebase for chord support should be shared by both QY and PSR.
• A switch for both QY and PSR to toggle between chord display and bitmap display.

Effect send metres with a zero value should be all blank.

Only SC-88 and SC-88 Pro need channel conquering. SC-55 and SC-8850 do not at all.

A VL monitor in Cambiare.

Real keyboard instruments often support pedal depth.
Oh dear Celestia this is such a deep rabbit hole! I'll need expert opinion.

Regardless of the actual port, all immediate notes get shown on port A.

Misinterpretation

There is an interpretation error for emulated SC display on the demo (https://gh.ltgc.cc/octavia/test/fakeSc.htm ), that the Stop displaying Bitmap command here is interpreted as Blank bitmap for a few seconds, where it should've stop displaying bitmap & immediately return displaying channel spectrums.

Samples

On my recording: https://odysee.com/@X0P1R4T3-33NSVREENMNT-0FFICIAL:f/TOPACK_Robbi985:6 Notice when the Octavia receives Stop displaying bitmap command, it shows empty bitmap until few seconds, instead of immediately going back to channel spectrums

On Robbi985's actual Roland SC88Pro: https://youtu.be/qrhnjT8MYWo?si=GAC9WMOoG9g6NbAJ the Stop displaying bitmap does indeed make the display immediately shows spectrum again.

The MIDI pack itself: https://odysee.com/@X0P1R4T3-33NSVREENMNT-0FFICIAL:f/TOPACK_Robbi985:6 which file was Manual Download at Robbi985.7z/SC88 MIDI/BPKM.mid. for the SC generator tool, it's in the other 7z file, SoundCanvas display tool.

Hi there!

It seems like the color of the fake MU LCD in Octavia is derived from how the screen appears in a photo—

I've noticed that the display appears overly green when photographed, but is much closer to safety yellow in reality. It's a bit difficult to get an accurate photographic representation of the color, as it requires overriding the white balance toward red by quite a bit (making everything else look much too red hehe):

#C9E10A does a pretty good job of replicating the true color I think:

I compared on multiple devices (mac & windows) and this was the most accurate across all of them.
This is assuming that the color of the LCD is the same for all MU devices, as I only have an MU2000 to reference, but pretty sure they use the same panel.

GM2 MIDI files like Robyn - Indestructible will freeze Octavia.

When playing MIDI from The Secret of Monkey Island, ReferenceError will be thrown sometimes.

The RPN/NRPN data commit state should not be set globally, but rather per-part.

XF Lyric

Allow Yamaha's proprietary lyric detection (Not to be confused with standard Lyric nor Text data).

currently, there is no interpretation available with this XF data.

Samples:

• https://odysee.com/@X0P1R4T3-33NSVREENMNT-0FFICIAL:f/Slayer-of-Black-MIDI-collections:9 Contains serveral Yamaha XF MIDI files. e.g. file MIDI/VOCALOID/SENBONZAKURA.mid. the Senbonzakura file is Japanese, try load it in your latest Yamaha PSR or Tyros or Genos. The Japanese lyric shows complete with pronounciation on the top of their kanji words. If you load it in non-Yamaha MIDI karaoke player (e.g. VanBasco's Karaoke Player), there is no lyric since those Yamaha MIDI files contained here only uses XF Lyric, not regular Lyric nor Text data.
• https://archive.org/details/yamaha-mid-radio-7.2-smaf-playback Yamaha's Japanese exclusive MIDI Player designed to interpret XF well, especially the XF Lyrics of it.

Part of XF improvement
Related:

• #40

Add basic support for the following models:

• Motif Classic (Motif 6/7/8, Motif-Rack)
• Motif XS (Motif XS6/XS7/XS8, Motif-Rack XS)
• Motif XF (Motif XF6/7/8)
• S80
• S XS (S70 XS, S90 XS)

Add a light colour scheme for Cambiare, and allow easy switching.

Cambiare build 75d9469 crashes Firefox randomly.

Tested on

• Firefox Dev Edition 118.0b9: Reproduced
• Firefox Stable 117.0.1: Reproduced
• Firefox Beta 118.0b9: Reproduced
• Firefox Nightly 119.0a1: Cannot reproduce Reproduced Cannot reproduce
• Tor Browser 12.5.3: Cannot reproduce
• Firefox ESR 102.15.0: Cannot reproduce
• Firefox ESR 115.2.1: Cannot reproduce
• Ungoogled Chromium 114.0.5735.198: Cannot reproduce

Reproduction

Firefox Dev Edition 118.0b9

Method 1

• Open Cambiare
• Load JayB - The Cleansing.mid through the "Open MIDI" button.
• Load JayB - The Cleansing.opus through the "Open Audio" button.
• Start playing, and wait for some time.

Method 2

• Open Cambiare
• Load JayB - The Cleansing.mid through the "Open MIDI" button.
• Load JayB - The Cleansing.opus through the "Open Audio" button.
• Switch between playing and pausing in relatively quick succession.

Method 3

• Open Cambiare
• Load JayB - The Cleansing.mid through the "Open MIDI" button.
• Load JayB - The Cleansing.opus through the "Open Audio" button.
• Switch between multiple display modes in relatively quick succession.

Attachments

• JayB - The Cleansing.zip

As soon as version 0.5 got released, Octavia should start preparing for a 1.0 release. It's mostly to fix and revamp stuff without too many additions.

That being said, there still are some tasks planned for it. Would get updated occasionally.

• Make the emulated screens part of the official release, and make them easy to integrate into other projects.

On Chromium and Safari on macOS, elements are not properly aligned at all.

Reported by @JayB1988.

Screenshots

Certain elements became strangely elevated for a few pixels.

At least the IDs were fully documented on the Yamaha MU90 implementation manual and the NS5R manual. No data for Roland yet.

Implementation details from @JayB1988:

Exclusive group means only one sample of that group can sound at a time. For a hi-hat, this means that an open hi-hat gets stopped by a closed or pedal hi-hat.

Rewrite part type detection to respond to all cc0, cc32 and PC events. Should fix certain bugs present in certain modes, e.g. 05R/W, X5D and NS5R.

Add support for customizable backgrounds in Cambiare.

The pitch bend range for MT-32 defaults to 12, rather than 2 for most post-GM standards.

With html2canvas and canvas captures, Cambiare should allow video exports directly (slower). Or just set the parameters accordingly, and directly use the screen recording APIs (faster).

Cambiare natively runs at a resolution of 1920px by 1080px at 50 FPS. The video exported should be exactly that as well.

Not trusting the performance of JavaScript APIs in general, the feature should allow customized CFR video exports. May still require the end user to accelerate or de-accelerate the video files due to Web platform restrictions.

Libraries to look at: canvas-capture

Held notes in the line style in Cambiare don't style properly if with pitch bend applied.

Allow customize the colour scheme, and enforce it in Cambiare.

When receive channel of a part on GS set to 16 (0x10), it means receiving for that channel is disabled entirely, instead of "channel 17". Crucial for correct CM-64 support.

Thanks @ValleyBell for sending the file, which helped spot the issue!

Design and develop a new event list-based visualizer. May borrow heavily from trackers.

Currently there are absolutely no limits on what RPN/NRPN values can be send, so for example, if coarse tune is set to -64, it's stored as-is instead of -24.

Roadmap

• Roland SC-8850
• Channel type
• XG EFX
• GS EFX
• AI² EFX
• KG Reverb
• Windows XP (Chrome 49, Firefox 52)
• Drum NRPN (MU1000 + SC-8850)
• Drum setups via SysEx
  • XG
  • GS
  • NS5R (drum dumps are not included!)
  • MT-32
• Name maps
  • General MIDI
  • 05R/W
  • X5D
  • QY100
  • MU90
  • MT-32
  • SC-88
• Multiple keyboard visualization styles in Cambiare
  • Block
  • Comb
  • Piano
  • Line

Delayed features

• MIDI routing (postponed to 0.6)
• Drum note exclusive groups (#19)

The channel mono/poly states don't get reset after a supposed mode reset.

Reported by @JayB1988.

Allow customize available ranges for MU1000 native channel switches.

Valid values: 1, 2, 4 (0, 1, 2).

X5D, 05R/W and AG-10 detection is flawed.
cc0 001 could not indicate 05R/W is being used, and there's no guarantee that AG-10's being used when all channels are either in cc0 056 or 062.

There needs to be a special MSB, acting as a redirector to MSB 0 to prevent MSB fallback conflicts.

The last release before switching the focus mainly to routing instead (0.6).

0.5.2: Cute Night

• Yamaha DOC (Disk Orchestra Collection)
  • Voices
  • SysEx
• GS reset device detection target (SC-55, SC-88, SC-88 Pro, SC-8850)
• SC-88 mode device detection target (SC-88, SC-88 Pro)
• KORG KROSS 2 PCG file direct import
• S90 ES/Motif ES EFX support

0.5.3: OlenianRock!

• KORG Trinity/TR-Rack support
• Move font loading away from constructors
• (optional) Support for hardcoded performance imports.
• (optional) Implement animated bitmap as a part of basic bitmap behaviour.
• #39
• Rewrite screen channel range events to use port and range instead.
• Unified basic bitmap behaviour in MU, QY and PSR