ACHIEVEMENT UNLOCKED - Pieces that most benefited the learning of other pieces.

[opus10no2]

https://www.pianostreet.com/smf/index.php?topic=62704.0

I just posted this topic about 'Patterns' and it inspired this question - Which pieces have you learned that gave you the most 'keys' to unlocking OTHER subsequent pieces you learned?

Given that most pieces are built on patterns, sequences, and the like...which pieces contain the most oft-used figurations?

I'm thinking particularly things such as the work of Liszt wherein he does use abundant variety but when sight-reading his works there are arpeggios, scales, cadenzas, progressions that are refreshingly easy and familiar to approach due to their 'oft-occuring' nature.

Czerny is the same really and I feel this is the chief benefit of studying his work - they give the fingers 'vocabulary' in a concentrated way that then 'Unlock' so much other Music.

I ask of you which Music you've learned that most readily 'UNLOCKED' further pieces you then went on to study? 

[expressman70]

Rachmaninoff's prelude in c# minor was very good for me. It was a taste of many different things in harder pieces.

[beethovenfan01]

Schubert's Impromptu in C minor, Op. 90. No. 1. It taught me how to layer voices, play with a sweet cantabile tone, semi-master 2/3 rhythm, improve my balance between melody and accompaniment, figure out chord progressions and patterns, and lay a melody over a complicated accompaniment in the right hand.

[debussychopin]

Im glad the op and me agree on czerny (pedagogical ) works in the topic of benefits to technique and capacity improving. I am mostly referring to op299 and 740.
Ive experienced marked improvement in my hands and fingers flexibility and capacities w the general direction of my teacher at school.
It has unlocked my abilities to learn chopin etudes properly and in turn, the chopin etudes have increased my knowledge and capacity to learn other more  advanced intermediate pieces ('more' meaning numbers, not 'more' advanced than chopin etudes, no, in my personal piano goals that level of advancement is good enough for me for enlightened and proper piano music enjoyment) from other composers.

[alkan2010]

Rach's Polichinelle helped me greatly in acquiring visual confidence with the keyboard, with his skips, leaps and moving figurations.

[stevensk]

-Chopin´s andante spianato helped me  whith Chopin op 10 no 12  ..to some degree