Complex sentence: Metallica has hinted that they may play some material from the upcoming as of yet untitled album in the summer tours, an interview with drummer Lars Ulrich in Kerrang magazine also let us know they have approximately 6 or 7 songs done without vocals.
Split into simpler sentences: Metallica has hinted that they may play some material from the upcoming, untitled album during this tour. An interview with drummer Lars Ulrich in Kerrang magazine also let us know they have approximately 6 or 7 songs done without vocals.