2) Investigate where the composers had / have been and are living and which of their works there have been performed past decades and how the support of environment there was and is (E.g. articles at newspapers in decades, performances and support of close located orchestras, support by institutions etc.). Here some samples of e.g. public annihilation attacks (personal attacks and threats at court one day) at german speaking area, scientific studies, article samples etc:

Evidence Samples: Sample 1, Sample 2, Sample 3, Sample 4, Scientific Analysis, Structures