Great! From here, you need to think about what you’d like to work on.
For technique:
The arrangement of Kuroishi Yosare here on Bachido is a good introduction to the basic patterns and techniques often found in Tsugaru music, but it doesn’t do much for bachidzuke.
For that, you aught to look into Tsugaru Jinku (or Dodarebachi as it is sometimes called). Tsugaru Jinku is a relatively simple song to play at first glance. Simpler, perhaps, than Kuroishi Yosare!
However, in this simplicity is the all important ushiro-ushiro-mae-mae striking pattern we so often see applied to Tsugaru music.
Here is Oyama Kouzan playing the Oyama version of it. Watch his bachi.
Notice how his bachi begins to move back (ushiro) and forward (mae) as the singer joins in. This is an important technique for introducing dynamics when using tatakibachi.
If you’d rather look into learning to sing while playing, good options may be found in Kokiriko or Kuroda Bushi. Both of which have a slower tempo and a melody that tends to match the voice.
Rokudan Jongara / Jongara Kyubushi / Jongara Shinbushi / Jongara Nakabushi are also options… but they’re a definite step up in terms of difficulty. You may want to wait a little before beginning them.
Of these four, Rokudan (Ichidan) is probably the simplest - but the whole piece is a set of six different movements that build on each other. It’s extremely useful to learn and be able to play, but it might still be overwhelming.
If you have any questions, please feel free to ask.