要解决这个问题，你需要做一些事情:

A way to capture MIDI data from your keyboard. Depending upon the interface: MIDI interface (classic) or USB MIDI interface (modern) the most likely interface is to a computer as it provides the most options. USB host microcontrollers are not as simple as just using a computer. A scheme to convert MIDI data into keystrokes. Like one user pointed out, chords are the way to go as the number of keys will not be dependent upon the number of piano keys. A way to inject a key into the operating system. This will require a low-level driver to be accurate. I have played around with applications that inject keyboard and mouse data into applications in Windows 7, and it can be flaky and depend upon whether an application is currently in focus. This is hardest part of the interface. What may work is to create a HID USB keyboard microcontroller that also has a serial interface.

串行接口将创建一个虚拟串行端口。读取MIDI数据并产生击键的软件可以向虚拟串行端口发送一个串行消息。微控制器将发送一个击键，使它看起来像一个标准的键盘输入。这将允许同时连接MIDI端口和USB MIDI键盘。

Hmmm, with this type of interface you could also simulate a mouse and use some piano keys setup for the mouse axis and buttons. The pressure could be used to determine mouse pointer velocity. So you could eliminate the mouse as well. Another benefit of this approach is any type of input device you connect could talk to the virtual serial port to produce keyboard and mouse events. So if you wanted to add other hardware such as drum pedals or a joystick it would be a matter of adjusting the program that talks to the serial interface.

Another take on the above is like some posted above to use an Arduino, but also include USB Host Shield from Sparkfun to handle USB based music keyboards. This allows the Arduino to be programmed as a keyboard or keyboard mouse combo in the boot loader chip and allows the device to act a USB host for the USB based music keyboard. Then you are covered for both types. Although, I still think the virtual serial port method is more flexible and would be easier to program in the long run. The Arduino device will be harder to change than a desktop program or service.

还有另一种可能: 单手和弦键盘已经存在。我看过关于它们的视频，但你必须确定它们是否会伤害你的手。

以MAME街机游戏为例。他们已经建立了硬件设备，允许输入任意数量的不同项目。例如，iPac将输入设备的信号转换为USB，然后计算机可以使用USB来模拟按键。您可以使用任意组合的输入设备，只要不需要疯狂的编程逻辑就可以，因为解释输入的软件已经完成并经过了良好的测试。

我见过飞行模拟器座舱输入，自定义亭，和投票系统建立在这种方法.....而且价格也很合理!

如果你不想自己做任何编程，只是想解决问题，你可以买一个usb - midi键盘，你可以重新分配任何键来发送一个QWERTY键盘输出信号，而不是一个midi输出，例如M-Audio Axiom Pro

这种方法适用于任何操作系统和任何支持标准usb键盘的计算机，因为midi键盘将自己标识为标准QWERTY键盘。

尝试使用基于微控制器的系统，比如Arduino。

您可以在MIDI DotNet中使用。net中的源代码示例访问硬件。

创建MIDI notes数据流的完整工作示例是在VB 5/6-Tipp 0521中:MIDI-Töne erzeugen (Visual Basic 6.0，某处是.NET版本)

一种模拟键盘敲击的方法是在VB 5/6-Tipp 0155: Tastaturereignisse simulieren (Visual Basic 6.0，某处是.NET版本)

和识别击键在tip - upload: VB中有描述。NET 0266: Globaler KeyHook。

然后，为钢琴演奏者使用一个良好的工作矩阵

在钢琴上，如果你是一个优秀的演奏者，你可以有10个手指在键盘上，如果矩阵是可用的，我认为你可以比任何电脑键盘用户更快。: -)

在这种情况下，如果我没有理解错你的问题，这应该不是什么大事。

您可以使用一个简单的AutoIt脚本来读取MIDI事件，请参阅MIDI输入。

您还需要MIDI UDF和模拟按键。

读取MIDI事件应该很容易，但不同的MIDI控制器(仪器)具有不同的功能。首先试着找出你的MIDI钢琴能做什么，然后看看你如何能最好地将这些功能映射到模拟qwerty键盘上。

如果你愿意，你可以在屏幕上或托盘上有一些东西来帮助你看到你正在做什么(也就是说，对于Shift, Ctrl和Alt模拟)。