It's time to check out KaraJamTM!
Scrolling lyrics & chords!
Learning tools! TABS right
from your MIDI files!
EZPZ MIDI editor!
Feel welcome to contact me here, any time! Patrick Hobbis
~
KaraJam Update 6/6/26
I have kind of created a monster many cool features for everyone to enjoy
free, only the AI stuff will be subscription based.
I am not going to post the AI stuff yet I want it to be perfect before release.
I recommend using the Setup and a USB stick to save all your work, this way you
will find everything easily when you come back to your projects. I am going a bit
crazy because I have so many bugs to fix because I built so many cool features and
fun for kids learning to play an instrument that debugging is taking longer then
I had hoped.
I will announce the release date as soon as I feel confident that it will work and
the beta tests will just be accommodating your work flow.
Here is a brief outline of what you can expect once the debugging process is complete.
* What Is JamStudio OS?
JamStudio OS is a browser-based music studio built specifically for MIDI musicians,
karaoke creators, and performers. It's not just a player ~ it's a full creative
environment. Load a .kar or .mid file and you're already inside a complete production
suite: notation editor, channel mixer, live synthesizer, FX chain, looper, media
editor, and more ~ all in one place, no install required.
If you've spent years working in MidKar, reading MIDI files, building karaoke tracks,
and performing with them ~ this was designed with your workflow in mind.
* Kickstart Version ~ Everything You Need to Create and Perform
Free during Beta. Includes the full app suite:
* KaraJam (Creator + Player)
Load .kar and .mid karaoke files instantly
Full lyrics display with scrolling sync
UltraStar .txt format ~ import and export
ARMI score layer ~ the bridge between your practice room and the stage
Karaoke Wizard ~ build karaoke packages (lyrics, no-vocals WAV, cover art)
Piano Roll view for surgical edits
* Kscore ~ MIDI Notation Editor
Full score view and part view ~ all channels stacked or single instrument
Read/write the same MIDI data you already work with
Real notation: ties, dots, triplets, chords, drum notation, bass clef auto-detection
Per-channel transpose, quantize, key and time signature palette
Note input with keyboard shortcuts (feels like MuseScore, lives in the browser)
Network tick-sync for band rehearsal ~ all musicians follow the same playback
position in real time
* Channel Mixer + KSynth
Per-channel mixer strip: volume, pan, reverb, chorus, mute, solo
Custom SoundFont loading per channel ~ bring your own SF2/SF3 files
Full GM synthesizer powered by SpessaSynth ~ sounds great out of the box
Per-channel synth popup: ENVELOPE controls (Attack/Release/Decay/Timbre), Pitch
Bend, Mod Wheel
* Live guitar and bass input through your audio interface
20 independent FX pins ~ route any signal through any effect
Processor Rack: broadcast-quality mastering chain (Color > EQ > Multiband Comp
> Limiter)
* KLooper ~ Live Loop Studio
8 simultaneous loop tracks
Record, Overdub, Mute, Undo per track
First loop sets the tempo ~ locks to KaraJam BPM
MIDI foot pedal support
* Media Editor (StoryStage)
Build slideshows, help comics, and interactive media using your music as the sound-
track Penguin-Z character layer ~ animated teachers walking you through every app
* File Support
.mid, .kar, .armi (native), UltraStar .txt
MIDI export with full program and CC state preserved
SoundFont .sf2 / .sf3 per channel
*Production Version ~ Full AI Studio Suite (Subscription ~ USB AI Stick Required)
Everything in Kickstart, plus:
* VoiceLab ~ Vocal Phoneme Instrument
Record a full phoneme set at every pitch and build a singing instrument from your
own voice Import any Penguin-Z character voice without a microphone using Piper TTS
Phoneme Wheel (CC 74) ~ switch vowel sounds live during performance
Load a .kar file > text-to-phoneme > your instrument sings the lyrics
* Demucs Stem Separation
Separate any song into vocals, drums, bass, and other stems ~ right in the browser
Feed stems directly into KaraJam Creator for chart authoring
Vocals stem feeds the pitch detection pipeline automatically
* KaraJam Scoring ~ Real Pitch Detection
Vocal pitch scored against the actual melody using librosa.pyin ~ not fake note
matching Guitar and bass scored via chromagram histogram analysis (Music Wizard engine)
Drums scored directly from your MIDI input
UltraStar .txt files generated with real MIDI pitch per syllable ~ not hardcoded 60s
* Penguin-Z AI Teachers
Each character has a Piper-generated voice and an Ollama-powered brain
Context-aware teaching: they know what you're working on and respond to questions
Doby, Stretch, Shreddy, Thumper, Spider, Keys, Bulb ~ each covers a different domain
* SFLab ~ SoundFont Laboratory
Assemble custom GM soundfonts by picking the best instruments from multiple SF2/SF3
files Full zone editor, generator table, preset organisation
Build instruments from scratch: WAV import, zone builder, loop editor
Two export modes: RMI (trimmed to used zones) or standalone SF3
* Join the Beta Test Team
We are actively debugging and adding features tuned specifically for the MIDI karaoke
workflow ~ better .kar handling, improved lyric sync, deeper MIDI editing, and more
tools built around how you actually work.
What we need from you:
Load your .kar and .mid files and tell us what breaks, what's missing, and what feels
wrong Suggestions from the people who know this format best
Your voice in shaping what Production features look like before they're locked
Beta is free. Your feedback earns you early access to Production features and a founding
member credit when we ship.
If you're in, click the email link or join us once we issue the full release.
We're building this for people who take MIDI seriously ~ and that's you.
> I'm In! <
Patrick Hobbis
Pat / JamStudio OS