Originally Posted by doogiet
I should have been more specific I've been using real tracks for years. I meant a way to replace the general MIDI sounds if I've got a file that has the melody written out with MIDI so I can learn the melody.

If you must have GM then getting a soundfont player and a GM soundfont (SF2). There are a number of free and not free players and soundfonts. Google/bing to find one that works for you.

If you are looking to replace only one MIDI sound at a time you already have Sforzando. It will load SFZ and SF2 patches. If you need more that one sound you will have to load multiple Sforzandos.

Note that with MIDI the more you spend the better the sound source. If you want the best MIDI sounds you need to purchase a program like Kontakt, Sampletank, etc. But the free Kontakt player will give you excellent sounds that are included and for purchase. Note I'm sure others have free players also but I am only familiar with Kontakt. If you purchase sounds for the Kontakt player you must be sure that it can be used in it. Some Kontakt sounds are only for the complete version and not the player.

FWIW if you are looking for the best MIDI sounds I would get Kontakt player. If you are looking for OK to very good sounds I would choose one of the other options I mentioned. YMMV as what is good sounds is a personal choice.

I hope this helps.

Last edited by MarioD; 4 hours ago.
Life is short so make sure you spend as much time as possible on the Internet arguing with strangers.

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware