This brings up a very basic point that I wish more people would let in to their thinking: Most directional microphones in the world aren't designed for recording wide-range music at distances typical of where an audience member would be. The main application for most microphones is communications--speech pickup at close proximity and/or in noisy environments. In some important respects, the design criteria for the two kinds of microphones are mutually exclusive of one another.
We typically look for characteristics such as flat, wide, smooth frequency response, polar patterns that are consistent across the frequency range, and low noise and distortion. Those sound like Platonic virtues that should apply everywhere, but they turn out to be specialized requirements in practice. For over 90% of the microphones that the world buys and sells, the main criteria are (a) low cost, (b) frequency response with reduced bass and one or more peaks in the treble for clarity, (c) ruggedness and reliability.
Well-known brand names with good reputations offer microphones like this because the market is SO HUGE compared to the market for high-quality music recording. They cannot afford to leave that kind of money on the table. And less good manufacturers do a land-office business in this type of microphone; for most customers low self-noise isn't a factor at all, and consistent response from sample to sample only matters at maybe the +- 3 dB level.
Unfortunately, people on this board sometimes ignore this situation and gamble on microphones (or capsules) just because they're small, directional, and affordable. But most of those are speech capsules, which sound thin when used for full-range music recording. You have to look at the frequency response diagrams and know what distance those diagrams were plotted from--or at the very least, read the manufacturer's description of what a microphone is designed to do. If there's any mention of close speech applications, then that isn't a general-purpose microphone or capsule, let alone a good one for semi-distant stereo recording with coincident or closely-spaced pairs.
--best regards