If your current project makes videomaking 2 times faster, you could do a weekly video. If it were 5 times faster, and it takes 2 weeks to make a video now, you could be uploading a video every 2.8 days + the time it takes to write the music. 5 days total?
i think you might be forgetting that during the 2 week schedule, there was a song included with that also. Also i should mention that writing a song should probably take only 1 or 2 days at most. Making the recording should probably be a week, but i believe it's possible to do it much quicker