The sixth studio album by the British rock group, originally released in 1971. Produced between touring commitments and widely regarded as a notable progression from their previous work, the band devised a series of novel recording and writing experiments, which also inspired the album's signature track “Echoes”. Track list: 1. One of These Days 2. A Pillow of Winds 3. Fearless 4. San Tropez 5. Seamus 6. Echoes