The (HQ-GM2) is a legacy software synthesizer module released by Roland's computer music division, Edirol. Originally designed for Windows XP and 2000, it remains a popular choice for high-quality General MIDI (GM2) playback because it loads all waveforms into RAM for instant patch changes. 64-Bit Compatibility and Modern Use
Which are you using? (e.g., FL Studio, Ableton, Logic) Are you on Windows or Mac ? Edirol Hyper Canvas 64 Bit
Extremely intuitive interface that doesn't require a steep learning curve. The (HQ-GM2) is a legacy software synthesizer module
The most common solution for Windows users is (by Jorgen Bergström). This is a universal VST bridge that converts 32-bit plugins to 64-bit. Edirol Hyper Canvas 64 Bit