/usr/share/doc/sonic-pi/tutorial/ is in sonic-pi-server-doc 2.10.0~repack-2.
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/usr/share/doc/sonic-pi/tutorial/Sonic Pi - Examples.html
/usr/share/doc/sonic-pi/tutorial/Sonic Pi - Fx.html
/usr/share/doc/sonic-pi/tutorial/Sonic Pi - Lang.html
/usr/share/doc/sonic-pi/tutorial/Sonic Pi - Samples.html
/usr/share/doc/sonic-pi/tutorial/Sonic Pi - Synths.html
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