adjustable all-instrument-tuning program Files

install me by:
./configure
make
(as root) make install

if make gives an error, 
e.g. you need to install some libs:
(as root)
apt install ncurses-dev

call me "piano"

if "can not open soundcard"
(as root)
it is because /dev/dsp (or /dev/dsp1 ...) is missing.
This relates to missing OSS modules.
(piano is written with old OSS sound API.
New ALSA sound API provides OSS compatibility tools.)
then do (as root)
apt install oss-compat
modprobe snd-pcm-oss

this helps in many cases but not in Ubuntu
as I just found out. 
there is a bug reported installing in oss-compat:
https://bugs.launchpad.net/ubuntu/+source/oss-compat/+bug/688377
this was of 2010
see discussion in
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/716814
of 2012
it is still there in 18.04 2019. sorry!

So try in Debian (it worked for me)
or an other linux.

help with piano -h
more info How to use: see man piano