And I didn't answer your post about the mantra because you answered that question for me
Okay, I took a look at the Gym Boss and it reminds me of a triple timer I use for baking bread. You set each timer for the interval you want, and then can make all three count down at the same time, beeping at each interval (example: rise, rest, bake.)
As I understand that yoga timer, it has two timers that either work at the same time, or one after the other (I would assume the latter) and then repeat. So, you can set each timer to a range from 2 seconds to 99 minutes and repeat a set of both together up to 99 times. You would set the first timer for your yoga at 02:30 and the second one at 01:00. Then set the repeat function for however many times you need for your total session. At least, that's how it seems to be set up to me.
You could record anything I throw together onto a CD, but I would have to send the file in wav format so that the computer software would understand that you're making a normal CD with it. MP3 files and other compressed formats don't convert back to uncompressed formats well at all (wav is an uncompressed format, and the native filetype on a CD.) That is also assuming you have a CD-player in your computer that can burn new CDs (most do these days.) Alternately, send the file-link to someone you know who could burn it for you. I am not sure if drugstores will do that or not. Kinko's might as well.
Alternatively, if you have computer speakers, and some program for playing music (I use JetAudio) you should be able to program that to repeat a ready-made file. It might also be programmable to play two short cuts (one at 2.5 min. and one at 1 min.) indefinitely.
You could also update your speakers to something like this that works as both a media player and a pair of speakers:
HY - A14 Dual Loudspeaker Digital Music Speaker Media Player
I've never seen anything like that before, and the price is right. Plus, it will play from both SD cards and USB drives. So, I could send you another custom-made media file, even on MP3, and you just download that onto a flash drive and plug it into the back of that player. (And if you want to look at my search for more choices, try this.) I already have a couple of media players and a wireless dual speaker, but all of them were rather pricey. I just wanted devices that would last many years before I had to replace them. I have no idea about the quality of the above speakers.
Well, let me know what you think, and we'll work something out if you need other files. Also, if you have a preference for nature sounds, let me know. That noise site has many choices, including fire, wind, rain, fan-noise, and other similar sounds. I bought some of them last year, so that's why I can edit them for sharing