IMA

I have just realized the problem (just when I was writting) I have to select in Midi/devices/out Microsoft GS wawetable Synth.

Thank you very much!!!!!

My apologies for bothering you, from my deep ignorance.

Thank you for your answer.

Yes, I know midi is not audio. I am not good at this, but I know it. The fact is that, till yestarday, I was able to hear all midi projects, but know, I am not. Being an ignorant, sometimes is hard... 

Are your midi tracks properly pointing to [aka routed to] a sound producing device (such as a hardware or software synth)?

I have  some midi tracks downloaded from learnchoralmusic. I used it till yesterday with no problem... 

 Is your mini piano hardware connected to your PC that you use to record midi note data in a DAW such as Cakewalk and then play back on the hardware from the DAW?

In preferences, Midi/devices/ out, I have selected my Audiobox usb (as usual). 

Thank you again, in advance...

Hello.

I have a problem. Suddenly, I am not able to listen to midi projects. I have just installed a mini piano to record, and from this moment, I can not hear midi. Can anybody help me? 

Thank you in advance