Starting April 5th ISB is hosting a new radioshow on Guitars Of The Valley Radio. It is called "De Ondertoon" and will focus on the inspiration and background of the lyrical themes of Dutch extreme metal artists. Tune in on every first sunday of the month, starting at 20h CET. Listen here!
A list of episodes:
| E1 | Michiel van Schooten | The Shiva Hypothesis |
| E2 | Tom de Wit | TDW, Bane of the Talebearer |
| E3 | Michelle Bouma | Mortifero, Metalcafé De Witte Wolf |
| E4 | Jan Kruitwagen | Sammath, Kaeck, Deat is the Master of this World |