Thx for your invitation, Peter. My longest time taken is for my Clarinet Quintet in C minor. I started the piece in 2016 Fall, struggling a lot with my life and whether I can really compose, and finished the final draft on April 2022, which was my 1st post here on YC Forum. And I've recently just finished the revision of it for a final version of it, and if this also counts, this work took me almost 10 years to finish. I am not one who love to be pushed by deadlines and commissions, hence still don't want to be a "professional" "composer". Music has their own lives and when they want to speak they will speak through inspiration. I never believe that by forcing myself would make good music at all; if I'm forced to write trash in order to fulfill commissions or for money, I will choose not writing at all. That accounts for 1 reason why I work really slow. One example is for my String Sextet: I knew very well in March 2024 that the piece has to be end in a palliative and serene mood, in pentatonic style. But by then I only finished the first 20 munutes in despairing minor and minor and minor passages linger. I couldn't make it. I truthfully believed I could never finish the piece as I didn't figute out how peace can be achieved after such sufferings, after all tragedies, wars, deaths happening in the world nowadays. You can ask @Thatguy v2.0 and he knew I am not lying. (But a big thx to his encouragement) So after suffering some real life pain, recovet and one day I walked and listened to a Chinesr music grouping, I was suddenly inspired-truly inspired. Inspiration came out of nowhere and I knew exactly how to continue the piece and finish it in the way I never thought possible. I always think that composer is just a pregnant woman (not people). Music just comes from God or Heaven or natute or whatever, and they never belong to you alone as they are only realized through you, hence never your own possession. (Although I am still retaining my copyright lol) That would need time to feed yourself with more nutrients from past human world and the nature, and the process won't be quick, and hence you can never expect your fruit to be born quickly. I am for sure no Mozart thus I can only slowly write my pieces with diligence and hopefully they go well. I wouldn't want to write trash and flashy and extravagant programme notes on my music's blah blah blah to lie to any listeners and myself. I hope everything I write is an honest representation of me, and that would take time too. Another thing is technical: I need time to get familiar with my material and medium and skills in order to adequately write what I want. In my multi movement works the 1st movements are always the worst because I need time to know my music and digest it to write. These are my brief explanantion of why I need much time to write. Henry