how long can you record on a cassette tape
Compact Cassette Tape length usually is measured in minutes of total playing time. The most popular varieties are C46 (23 minutes per side), C60 (30 minutes per side), C90, and C120. The C46 and C60 lengths typically are 15 to 16 micrometers (0.59 to 0.63 mils) thick, but C90s are 10 to 11 µm (0.39 to 0.43 mils) and (the less common) C120s are just 9 µm (0.35 mils) thick, rendering them more susceptible to stretching or breakage. BASF declared the C60 with 88 meters (289 feet).[clarification needed] Some vendors are more generous than others, providing 132 or 135 meters (433 or 443 feet) rather than 129 meters (423 feet) of tape for a C90 cassette. Even C180 tapes were available at one time, but these were extremely thin and fragile and suffered from such effects as print-through, which made them unsuitable for general use. 150 minute length is still available from Maxell (UR 150), Sony (CDixI 150) and TDK (TDK AE 150).
Helter Skelter (song) The song was recorded many times during sessions for The Beatles. During the 18 July 1968 sessions, the Beatles recorded a version of the song lasting 27 minutes and 11 seconds,[12] although this version is rather slow and hypnotic, differing greatly from the volume and rawness of the album version.[13] Another recording from the same day, originally 12 minutes long, was edited down to 4:37 for Anthology 3. On 9 September, 18 takes of approximately five minutes each were recorded, and the last one is featured on the original LP.[12] After the 18th take, Ringo Starr flung his drum sticks across the studio[14] and screamed, "I got blisters on my fingers!"[5][12] Starr's shout was included on the stereo mix of the song. At around 3:40, the song almost fades out, then quickly fades back in with three cymbal crashes and Ringo's scream (some sources erroneously credit the "blisters" line to Lennon; in fact, Lennon can be heard asking "How's that?" before Ringo's outburst).[15] The mono version (originally on LP only) ends on the first fadeout without Starr's outburst. The mono version was not initially available in the US as mono albums had already been phased out there. The mono version was later released in the American version of the Rarities album. In 2009, it was made available on the CD mono re-issue of The Beatles as part of the Beatles in Mono CD box set.