BlendlineBuild the set
while it plays.
Blendline turns a folder of tracks into a mixed set, plays it at one tempo, and lets you rework it live without the music ever stopping. The set takes care of itself. You get the room to perform.
Start from a set that's already mixed.
Drag a thousand tracks, get a set.
Drop files or whole folders. Every track is analyzed in parallel: tempo, beatgrid, kick, key, energy, and phases aligned to 8-bar phrases. Then it's laid out as a set, transitions included.
Results are cached, so the second time is instant. No library to import first.
Change it while it plays.
Each track mixes into the last one on the phrase, with the bass swap where it belongs. Grab a track and slide it, drag a fade or the bass swap, and everything snaps to the bar. Auto puts it back.
What's on air keeps going. An edit you can't hear yet applies right away. One you can waits for the next bar line and fades only the tracks it changes.
Order by what matters.
Sort the set, or only the tracks you selected, by set curve, energy, key or BPM. The set curve warms up, peaks and lands. Key walks around the Camelot wheel. If it's worse, undo.
Blendline works out key and energy (1 to 10) itself. If your files carry Mixed In Key tags, it uses those.
The set runs itself.
You play on top.
Blendline keeps the set mixed and on time, so your hands are free for a groovebox, a sampler or an effects unit. Map a MIDI controller to the transitions, tempo and levels, and keep the laptop closed if you want.
Bring a groovebox.
Blendline sends MIDI clock, start, stop and song position locked to the set's beats and bars. Gear that steps on pulses, like Pocket Operators and Volcas, gets sync pulses on the left channel.
Patterns start on the bar, and stay there when the playhead jumps.
Cue it in your headphones.
Monitor mode runs a second player on another output, in phase with the main one. Try the next transition while the room hears the set. Preview takes you there a few bars early.
Pick the channel pair for each output, so headphones on outputs 3–4 of your interface just work.
Built so the music doesn't stop.
A crash in the middle of a set shouldn't mean silence, so the sound doesn't live where the bugs are. Playback, the monitor and MIDI clock run in their own process. The window you see is a remote control.
BlendlineEngine audio process
Light and powerful.
One tempo for the whole set
It starts on the median of your tracks. Edits never change it, so removing a track live doesn't retempo anything.
Stretching that sounds like music
Every track is stretched to the set tempo in real time with Signalsmith Stretch, at any BPM.
DJ-style EQ and curves
Three-band swaps and transition curves, so the mix sounds like a mix and not a crossfade.
Split at any bar
Cut a track in two and arrange the halves like separate tracks.
Sets that follow a folder
Drop a folder on the sidebar. New files land at the end, deleted ones leave, the ones you took out stay out.
Duplicate check
Because that one track always shows up twice.
Everything saves itself
Sets live in your Music folder, folders are groups. Browse other sets without stopping playback.
Export the mix
Render the whole set as WAV or AAC, transitions and all.
Loud, never clipping
A main compressor for loudness. At 0 it's a look-ahead safety limiter that leaves anything under the ceiling untouched.
Phases on the phrase
Intro, groove, buildup, drop, breakdown and outro, aligned to 8-bar phrases and drawn right on the timeline.
English and Spanish
The whole app, switchable in Settings.
Keyboard and controller
Jump a phrase, a bar or a track from the keys. Map knobs, faders and endless encoders to almost anything.
Your next set is already mixed.
Drop in a folder and press play. Then make it yours while it runs.