🚧Crop, Extend and Placement

Use these settings to decide which parts of a song you keep and lose for extension, and where the new clip goes.

Crop and Extend and Extension Placement are tools used to work with extending clips, telling the model exactly what you are extending and where it should go.

Crop and Extend

Click the Crop and Extend toggle to activate the mode, give it a moment to load, and you should see something like this:

As with many options, always double check whether this one is turned on or off before pressing generate!

The Waveform above represents the entire song, in this case 4:19ish of song. The blue overlay on top of it with the white sliders on the left and right, indicates what part of the song is currently going to be kept for the extension. So in this case, that would be all of the song.

If you adjust the sliders you can move this around:

Use the "play" button on the left to hear the song being cropped. The track with automatically stop and start where you've placed the highlighted blue section, so you know what you're working with.

You can now see there is much waveform which isn't highlighted, some blue (prior) and some grey (after); these sections which aren't highlighted will be cropped out of the generation, so the song would be extended only from the 20ish second part in the middle.

What this also means is when generating the clip, with the Context Length the model will not be able to "see" or use any of the clip outside the highlighted area for context. This is worth bearing in mind. So for example with above, even if I selected 130 second of context to be used, at most it can only use the 20ish seconds I'm keeping.

Use the Crop and Extend tool to precisely control from where you start and stop. You can use this to "dial back" on parts of generations that didn't quite work out and try them again, or to build a song in very small pieces by repeatedly cropping out sections of 32s gens. It's a very powerful tool when used correctly.

Extension Placement

As with many tools, always double check which is highlighted here! It would be very awkward to generate an Outro when you wanted an Intro!

This tool allows you to tell the AI model where a generation is going to go. Before, or after the section of song you're working with. There are four options, which are essentially just "before and after" with some shortcuts built in.

Before: Intro and Section

If you select one of these two options, the generated clip will go in front of the song you're working with. This means the ending of your generated clip is the start of your current song piece. Selecting Intro here is fundamentally the same as Section, except it automatically sets the Clip Start option within Song Structure to 0%. Section will cause the clip to have whatever Clip Start setting you have selected.

After: Section and Outro

If you select one of these two options, the generated clip will go after the song you're working with. "Section After" is the default setting for extension, so bear that in mind. This means your generated clip starts from the end of your current song piece. Selecting Outro here, similar to above, simply sets the Clip Start option to 90% automatically, signalling to the AI you want the generated clip to finish the song.