I've wanted to get back into piano and to start off I was wondering if there was any decent FOSS piano software for linux?

I just picked up Gauntlet for nes and when I load into room 1 I'm greeted with glitched walls misplaced everywhere which let's me walk through some. and there's random items I can't pick up which means I'm unable to continue in the game past room 1

The title says it all, have any of you found a book on D-branes worth recommending?

The title says it all, have any of you found a book on D-branes worth recommending?

The title says it all, have any of you found a book on D-branes worth recommending?

I recently wanted to use cock.li as my main email service but I'm not sure where to get a free invite

As the title states whenever I try to login and start the desktop environment (xfce4 and dwm) I get kicked back to the login screen with no error message. Beforehand I was messing around with configuring dwm. I've tried updating through the tty and deleting dwmblocks (which is what I was messing with before all this)

Here's the output when running startxfce4:

usr/bin/startxfce4: Starting X server

(EE)
Fatal server error:
(EE) Server is already active for display 0
                if this server is no longer running, remove /tmp/.X0-lock and start again.
(EE)
(EE)
Please consult the X.org foundation support at http://wiki.x.org for help.
(EE)
Authorization required, but no authorization protocol specified

xinit: giving up
xinit: unable to connect to C server: Resource temporarily unavailable
xinit: server error

As the title states whenever I try to login and start the desktop environment I get kicked back to the login screen with no error message. Beforehand I was messing around with configuring dwm. I've tried updating through the tty and deleting dwmblocks (which is what I was messing with before all this)

Here's the output when running startxfce4:

usr/bin/startxfce4: Starting X server

(EE)
Fatal server error:
(EE) Server is already active for display 0
                if this server is no longer running, remove /tmp/.X0-lock and start again.
(EE)
(EE)
Please consult the X.org foundation support at http://wiki.x.org for help.
(EE)
Authorization required, but no authorization protocol specified

xinit: giving up
xinit: unable to connect to C server: Resource temporarily unavailable
xinit: server error

When trying to install games on an ext4 external drive I get a disk write error from steam. Whenever I reset the permissions on the drive to both read and write, not just read, steam immediately reverts that whenever it's opened.

When trying to install games on an ext4 external drive I get a disk write error from steam. Whenever I reset the permissions on the drive to both read and write, not just read, steam immediately reverts that whenever it's opened.

Does anyone know where I could find a reasonably priced photon pair generator online?