1, Guitar

-Basic
Chord and stroke playing based on key, sing along famous or interesting songs.
After finishing this level, it gives you a good hobby that you can find chords of the songs on the internet and play along.

-Intermediate course 1
Advanced chords based on theory, basic form of pentatonic, major scale that you can play solo and have more understanding on fretboard.

-Intermediate course 2
Advanced chords that you can play along with jazzy song, playing methods when you write modern songs like pop, hiphop and so on

-Intermediate course 3
Advanced rhythm play that you can play funky musics and so on

-hobby intermediate course 4
Basic to intermediate finger skills that can play songs with arpeggios or other finger based skills that can play some songs like Ed Sheeran

-Professional learning course
You can learn solo over changes, how to build up skills, how to play like a pro in a studio with some studio experiences and tone making with pedal boards, recording songs and so on that you can use in a professional career

2. Piano

-Basic
how to play triad chords
how to play 7th chords
how to adapt them with songs
basic playing method, like 4 beat, use pedal

-Intermediate
Basic theory of scales and chords
Use of extension chords and jazz scales

3. Songwriting

*requirement : you need to be able to play at least one melodic/chord instrument like guitar and piano in intermediate level

Try learn theories with extremely easy understanding methods! And scratch methods of writing songs and lyrics with feedback.