picroft will not install

[ejmorgan55]

(.venv) pi@picroft:~ $ apt-get -y install pianobar
E: Could not open lock file /var/lib/dpkg/lock-frontend - open (13: Permission denied)
E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), are you root?
When trying to install; the above error is received.

[forslund]

I think you need to run with sudo:

sudo apt-get -y install pianobar