Complex sentence: Meanwhile, the demo recording of the album "Probujdane" was completed, followed by their first live performance, featuring Spas Dimitrov on guitar, Nikolay Trajkov on drums and Hristo Pashov on bass.
Split into simpler sentences: Meanwhile, the demo recording of the album "Probujdane" was completed. Their first live performance soon followed, featuring Spas Dimitrov on guitar, Nikolay Trajkov on drums and Hristo Pashov on bass.