A narthex (a portico or entrance hall) for the west front was designed by Sir Edwin Lutyens in the mid-20th century but was not built. Images of the abbey prior to the construction of the towers are scarce, though the abbey's official website states that the building was without towers following Yevele's renovation, with just the lower segments beneath the roof level of the Nave completed.
What was designed for the west front of the abbey but not built?
A narthex

West's life took a different direction when his mother, Donda West, died of complications from cosmetic surgery involving abdominoplasty and breast reduction in November 2007. Months later, West and fiancée Alexis Phifer ended their engagement and their long-term intermittent relationship, which had begun in 2002. The events profoundly affected West, who set off for his 2008 Glow in the Dark Tour shortly thereafter. Purportedly because his emotions could not be conveyed through rapping, West decided to sing using the voice audio processor Auto-Tune, which would become a central part of his next effort. West had previously experimented with the technology on his debut album The College Dropout for the background vocals of "Jesus Walks" and "Never Let Me Down." Recorded mostly in Honolulu, Hawaii in three weeks, West announced his fourth album, 808s & Heartbreak, at the 2008 MTV Video Music Awards, where he performed its lead single, "Love Lockdown". Music audiences were taken aback by the uncharacteristic production style and the presence of Auto-Tune, which typified the pre-release response to the record.
What vocal technology did Kanye pick up for his next set of artistic endeavors?
Auto-Tune

Decoding, on the other hand, is carefully defined in the standard. Most decoders are "bitstream compliant", which means that the decompressed output that they produce from a given MP3 file will be the same, within a specified degree of rounding tolerance, as the output specified mathematically in the ISO/IEC high standard document (ISO/IEC 11172-3). Therefore, comparison of decoders is usually based on how computationally efficient they are (i.e., how much memory or CPU time they use in the decoding process).
What is carefully defined in the standard?
Decoding