Here’s a useful new practice tutorial from Tatiana Riabinkina, a Russian expat who lives in New Zealand with her husband and daughter. She’s studied and performed music for decades, and was also a licensed doctor in Russia. She’s the person I gifted my 2013 faded cherry Gibson SG to after I snagged a 2007 Week One Gibson SG Supreme (thanks to @Whying_Dutchman for pointing me to it on Bassic.de).
If you are interested, here are two pieces she composed, one for a string quartet and one for a large choir.
She also played bass in a Russian avant garde band back in the day.