Month: December 2025

6 Posts

The third optimization of blog architecture: WordPress active-active node adjustment and database import precautions
1 The cause of the third optimization of the blog's active-active architecture: A few days ago, I was preparing to perform a very routine maintenance operation on the Mac mini node in the blog's active-active architecture: upgrading the version of Portainer. As a result, a seemingly insignificant small problem ended up putting the entire node...
The Awakening of Voice (5): The Myth of the Original Key—Why sometimes “not singing in the original key” actually helps you sing with your own voice better
1 When we get used to “the original singer is the standard” but forget whose voice ours is: When most people start singing, there is actually an “invisible standard” by default in their minds—whatever key the original singer sings in, we should also sing in that key. It seems that only by completely following the original singer can we be recognized...
The Awakening of Voice (4): The natural chasm between professional vocal systems and self-taught singing for ordinary people—Differences in language, methods, and structures
1 Preface: With my recent initial achievement of the goal of “larynx position freedom,” I have been reflecting on the detours I took over the past two years of studying “singing”—it is no exaggeration to say it was a winding mountain road. The fundamental reason for taking so many detours was that right from the start, I was misled by various online “vocal teachers”" teaching...
The Awakening of Voice (3): Misconceptions and scientific interpretation of ”high placement”
1 Entering ‘high placement’: A deified concept of high notes. Speaking of “high placement,” I believe many friends who learn singing and have watched countless instructional videos must be familiar with it. Searching on Bilibili, the three words “high placement” bring up a screen full of tutorials, with titles like “Unlock the secret of high notes,” “Sing high notes easily"...
Why is WordPress more prone to ”Error establishing a database connection” on entry-level VPS? A systematic analysis from database to architecture
1 Preface: I have been using an entry-level VPS ($39/year) from Racknerd's Chicago data center to build the “read-only node” in my blog's active-active architecture for almost half a year now. Over this half-year, the overall stability of the VPS has actually been quite good, at least...
The Awakening of Voice (2): Misunderstood voices—The illusion of high notes and the hallucination of low notes
1 Preface: In the process of seriously studying singing over the past two years, I encountered a very thorny problem: my ears' ability to distinguish could not keep up with my body's vocal ability. When professional vocalists listen to an original recording, they can often immediately judge how high that high note actually is, or whether that low note really sinks that low; but for someone like me...
       

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Here, long-term exploration is mainly carried out around the following directions:

🧱 Personal Digital Infrastructure and Blog System Construction
☁️ Cloudflare and Network Architecture Practice
🧠 AI and Knowledge System Exploration
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🎵 Music and Sound Cognition
👁️ Cognitive Perspectives and Worldviews