abacab
kennywtelejazz
After demoing Reaper for an extra month or two
I finally bought my license today 
There are a few things that Reaper does that I absolutely Love ...
The media explorer has the ability to act exactly as the Acid Pro 7 Chopper does for both midi and Audio ...
Love it , it means I can preview sections of anything I want, audio or midi in the media explorer w tempo match on ,
highlight it , right click and place it into my project loop enabled (as a groove clip)
I wish SONAR could do that in the browser view
that workflow sure saves a lot of time and extra steps,It works great w drum midi's ..
There's a lot more I like about Reaper , I'll keep it at that for now ....
all the best ,
Kenny
Hey Kenny, great tip on the Reaper media explorer! Will need to check that out! Have been demoing Reaper also lately, but only as far as VST plugins really, so had not run across that feature. I have Acid Pro too, but it's no longer installed, so that would be cool!
Hey abacab ,
You might be pleasantly surprised at how easy and fun it is to get something happening w that Acid Pro style of workflow in Reaper.
A couple of things off the top of my head ,
For example lets say I want to preview some Loop Loft midi drum loops . Midi preview in the media explorer requires you have a VST synth on your track to be able to hear the midi performance ..
Set up your favorite drum plug and you are good to go..with tempo match on in the media explorer you can slide up the file from the media explorer , or you can highlight a section of the clip just like the Acid chopper and place it in the tracks time line looped or not looped ...
Another interesting thing about the Reaper media explorer when working with midi is it is very easy to set up a number of different tracks all with different synths .You can blast through and create a nice little midi tune pretty fast ....here's how ..a small example
Lets say you have synths set up on each track ...track one keys, track two bass , track three melody / lead instrument , track four drums ...
When you want to preview midi parts for those instruments all you have to do is left click on the track that has the instrument you want ..let's say drums ..track four in my little example ..choose the track , and just go to your drum midi files in the media browser to hear them ...
if you have a bass midi part , just hit track two to highlight it in the track view and use the media explorer to audition your midi bass parts ...
Rinse and repeat

Another nice workflow you can do that is totally an Acid Pro style way of working is to place a mix , or a stem , or a backing track , or a fill in the black / song that's still under construction into Reaper ...
Now here's where you have to be careful

Since there is no beat detector in Reaper like there is in Acid Pro ( that I Know of Yet ..it may have I don't know )
Make sure you know the correct tempo of the file and set Reapers tempo to that files tempo before you bring it into Reaper as a media object ....
I learned this one the hard way

...
I had a stem I was working on that was recorded in SONAR ..Bass Drums and Keys ..all audio parts I played
the correct tempo of my mix was 135 ...when I opened Reaper as a new project and placed my first media object
" my Tune " Reapers project tempo was set at a default of 120 ...For the record it would not have mattered if I was just looking to blow a guitar solo over it ...the thing is I was looking to build up parts and layers any way I could .
SO here's the RUB ..once I had placed my mix in Reaper it played at the speed I had placed it in..that part was OK
The problem was it now conformed to Reapers default tempo ..meaning when I tried to set Reaper to 135 ..my project just played faster ....
In a nutshell once I understood what happened I closed the project with out saving it ..then I started a new Reaper project
Before I did another thing , I made sure I set Reaper to a tempo 135 ...every thing from that point on was good to go ...
My metronome now lined up and played correctly plus I had the added benefit of having and I do mean everything from midi to audio now synced perfectly to my mix / tune under construction.....this also included the media explorer and all the files .
The interesting thing is when using Reaper in an Acid Pro type of mode I feel a lot can be done .
Nothing I have described here involves having to dive in deep and figure out all the sub menu's or hidden right click options that can get confusing to a person who is just starting to learning the program ..
I feel this is a good start ....I hope you try it out when you get the chance .
all the best ,
Kenny