I want to make music where I layer samples over one another. I don't just want these to be samples of notes--I have samples of drum breaks and guitar riffs that I'd like to sequence.
For example, let's say I have a one-measure 4/4 drum sample at 110 BPM and a two-measure 4/4 guitar sample at 125 BPM. I would want to have two consecutive measures of the drum sample on my percussion track while the guitar sample is going on another track, with either the guitar slowed to match the drums or the drums sped up to match the guitar.
My OS is Windows 7. What Windows-based DAW will enable me to do this? Ideally I want a free one, because I'm just getting started making sequenced music and want to play around with the tools before I start putting a lot of money into this. I looked into LMMS, but that seems to be designed more for sequencing individual notes. I've also worked with Audacity for stretching samples, but Audacity doesn't have the ability to enter samples in blocks.