The more the merrier ... knowledge builds on experience. The piano is certainly a visual aid among other things.Max Karios wrote:I am wondering whether it would by acceptable to have one as a workhorse in your stable in order to get a different perspective on things when composing.
That said, there are 'warnings'. A good number of composers might benefit by learning the flute or trumpet or some other monophonic instrument in order to steer them back to the basics. While the technicals listed can be useful, music is emotional expression. Composers need to 'feel' more than anything. And listeners should be able to enjoy music without a PhD or being required to learn the whole life story of the composer in order to appreciate the tune.
Another factor is that there are benefits to the limitations of the guitar. Composing for it forces expression in constrained ways reflecting the complex dynamics of human emotion which can be both simple and complex at the same time - constrained.
A paintbrush with three primary colors is constrained and simple. Yet the pieces some have made can take one's breath away ...