For 10 points, name this home country of Bohuslav Martinu, Bedrich Smetana, and Antonin Dvorak.
A composer born in this modern-day country preferred the name Fantaisies symphoniques for his sixth symphony, and produced a double concerto for two string orchestras, pianos, and timpani. A tone poem that depicts the sounding of a hunting horn signaling for the slaughter of men by warrior women was composed by another denizen of this country, who included a high, sustained harmonic E played by the first violin to signify his tinnitus in his string quartet From My Life. Another of its composers produced a popular seventh Humoresque, and drew on Native American and African-American music for his New World Symphony. For 10 points, name this home country of Bohuslav Martinu, Bedrich Smetana, and Antonin Dvorak.
A composer born in this modern-day country preferred the name Fantaisies symphoniques for his sixth symphony, and produced a double concerto for two string orchestras, pianos, and timpani.
Czech Republic [or Ceska Republika]