This is a demo tape that Grohl released way back in 1990 when he was still with Nirvana under the name "Late!". From Wikipedia
Though Grohl had been writing songs for several years, he declined to introduce his songs to the band for fear of damaging the band's chemistry. Instead, Grohl compiled his songs and recorded them himself, releasing a cassette called Pocketwatch in 1992 on indie label Simple Machines. Rather than using his own name, Grohl released the cassette under the pseudonym "Late!".
In the later years of Nirvana, Grohl's songwriting contributions increased. In Grohl's initial months in Seattle, Cobain overheard him working on a song called "Color Pictures of a Marigold", and the two ended up jamming on it. Grohl would later record the song for the Pocketwatch cassette. During the sessions for In Utero, he decided to re-record the song, and the band released this version as a b-side on the "Heart-Shaped Box" single, titled simply "Marigold".
Earlier, as the band worked on new material for In Utero, Grohl contributed the main guitar riff for what ended up becoming "Scentless Apprentice". Cobain conceded in a late 1993 MTV interview that he initially thought the riff was "kind of boneheaded", but was gratified at how the song developed (a process captured in part in a demo on the Nirvana box set With the Lights Out). Cobain noted that he was excited at the possibility of having Novoselic and Grohl contribute more to the band's songwriting.
Prior to their 1994 European tour, the band decided to schedule session time at Robert Lang Studios in Seattle to work on demos. For most of the three-day session, Cobain was absent, so Novoselic and Grohl worked on demos of their own songs. The duo completed several of Grohl's, including future Foo Fighters songs "Exhausted", "Big Me", "February Stars", and "Butterflies". On the third day of the session, Cobain finally arrived, and the band recorded a demo of a song later named "You Know You're Right". It was the band's final studio recording.
"kind of boneheaded" eh?
Dave Grohl - Late! Pocketwatch (demo cassette)
1 - Pokey the Little Puppy
2- Petrol CB
3 -Friend of a Friend
4 -Throwing Needles
5- Just Another Story About Skeeter Thompson
6 - Color Pictures of a Marigold
7 - Hell's Garden
8 - Winnebago
9 - Bruce
10 - Milk