======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '81'
                                          'artist'  'IBM 7090 Computer'
                                     'text_people'  ''
                                         'release'  'Music from Mathematics'
                                           'title'  'Variations in Timbre and Attack'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-UNU-2', 'Q-LOCALNESS-1', "
 "'Q-OLDST-2', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['oddities of sound', 'beautiful', 'electronic', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '05'
                                      'tracktotal'  ''
                                            'date'  '1962'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-early;mi-earlysynth;set-pl-mor;set-pl-shirleyspinoza'
                                             'bpm'  '119.9'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'COMM::eng'                                         'Decca DL-9103 Mono'
'TALB' (Album/Movie/Show title)                     'Music from Mathematics'
'TBPM' (BPM (beats per minute))                     '119.9'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-experimental-early',
 'mi-earlysynth',
 'set-pl-mor',
 'set-pl-shirleyspinoza']
'TDRC' (Recording time)                             '1962'
'TENC' (Encoded by)                                 'Basic Hip Digital Oddio'
'TIT2' (Title/songname/content description)         'Variations in Timbre and Attack'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'IBM 7090 Computer'
'TPE2' (Band/orchestra/accompaniment)               'IBM 7090 Computer'
'TRCK' (Track number/Position in set)               '05'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['oddities of sound', 'beautiful', 'electronic', 'experimental']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.91 dB'
'TXXX:replaygain_track_peak'                        '0.501589'

========================== row from database ==========================
                                              'id'  766523
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Music from Mathematics ~ Played by IBM 7090 Computer (Decca, 1962) [128k]/IBM 7090 Computer - 05 - Variations in Timbre and Attack.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  81
                                           'genre'  electronic-experimental-early;mi-earlysynth;set-pl-mor;set-pl-shirleyspinoza
                                        'filesize'  1312382
                                           'mtime'  1636911702
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm ~ Played by (Decca, 1962) [128k] 05 electronic experimental early;mi earlysynth;set pl mor;set pl shirleyspinoza
                                      'tag_artist'  IBM 7090 Computer
                                     'tag_release'  Music from Mathematics
                                       'tag_title'  Variations in Timbre and Attack
                                             'bpm'  119.9
                                    'search_title'  'and':4 'attack':5 'in':2 'timbre':3 'variations':1
                                   'search_artist'  '7090':2 'computer':3 'ibm':1
                                  'search_release'  'from':2 'mathematics':3 'music':1
                                     'search_rest'  '128k':7,8 '1962':5,6 'by':2 'decca':3,4 'early':11,13 'earlysynth':15,17 'electronic':9 'experimental':10 'mi':12,14 'mor':20,22 'pl':19 'played':1 'set':16,18,21,23 'shirleyspinoza':24
                                    'search_combo'  '128k':18,19 '1962':16,17 '7090':7B 'and':4A 'attack':5A 'by':13 'computer':8B 'decca':14,15 'early':22,24 'earlysynth':26,28 'electronic':20 'experimental':21 'from':10C 'ibm':6B 'in':2A 'mathematics':11C 'mi':23,25 'mor':31,33 'music':9C 'pl':30 'played':12 'set':27,29,32,34 'shirleyspinoza':35 'timbre':3A 'variations':1A
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-3', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['oddities of sound', 'beautiful', 'electronic', 'experimental']
                                        'tag_date'  1962
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636911702.2639337  (2021-11-14 18:41:42)
                             'size'  1312382