======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '68'
                                          'artist'  'The Big Univac City Orchestra Index'
                                     'text_people'  ''
                                         'release'  'Disc 1  Live--Shirley & Spinoza Internet Radio 01/12/03'
                                           'title'  '01 TBUCOI  S&S Disc 01'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', "
 "'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '15'
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '128.3'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 000008AA 00000987 0001033C 00010F71 00004E5E 00004E5E 00007A98 00007C22 '
 '0000700A 0000B539')
'COMM:iTunes_CDDB_1:eng'                            'C70F660F+295843+15+150+5307+45862+67961+90370+113486+134224+140877+142858+159137+177440+205862+234373+260259+269845'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '1'
'TALB' (Album/Movie/Show title)                     'Disc 1  Live--Shirley & Spinoza Internet Radio 01/12/03'
'TBPM' (BPM (beats per minute))                     '128.3'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '2003'
'TENC' (Encoded by)                                 'iTunes v3.0.1'
'TIT2' (Title/songname/content description)         '01 TBUCOI  S&S Disc 01'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Big Univac City Orchestra Index'
'TPOS' (Part of a set)                              '1/3'
'TRCK' (Track number/Position in set)               '1/15'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.94 dB'
'TXXX:replaygain_track_peak'                        '0.411091'

========================== row from database ==========================
                                              'id'  1379523
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Index - Tracks from various albums/other [256k-320k]/The Big Univac City Orchestra Index 1-01 01 TBUCOI  S&S Disc 01.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  68
                                           'genre'  electronic-unsorted
                                        'filesize'  2755565
                                           'mtime'  1620538437
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Tracks from various albums other [256k 320k] electronic unsorted
                                      'tag_artist'  The Big Univac City Orchestra Index
                                     'tag_release'  Disc 1  Live--Shirley & Spinoza Internet Radio 01/12/03
                                       'tag_title'  01 TBUCOI  S&S Disc 01
                                             'bpm'  128.3
                                    'search_title'  'disc':5 's':2,3 'ss':4 'tbucoi':1
                                   'search_artist'  'big':2 'city':4 'index':6 'orchestra':5 'the':1 'univac':3
                                  'search_release'  '01':9 '011203':12 '03':11 '1':2 '12':10 'disc':1 'internet':7 'live':3 'liveshirley':5 'radio':8 'shirley':4 'spinoza':6
                                     'search_rest'  '256k':6,7 '320k':8,9 'albums':4 'electronic':10 'from':2 'other':5 'tracks':1 'unsorted':11 'various':3
                                    'search_combo'  '01':20C '011203':23C '03':22C '1':13C '12':21C '256k':29,30 '320k':31,32 'albums':27 'big':7B 'city':9B 'disc':5A,12C 'electronic':33 'from':25 'index':11B 'internet':18C 'live':14C 'liveshirley':16C 'orchestra':10B 'other':28 'radio':19C 's':2A,3A 'shirley':15C 'spinoza':17C 'ss':4A 'tbucoi':1A 'the':6B 'tracks':24 'univac':8B 'unsorted':34 'various':26
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2003
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620538437.1980774  (2021-05-09 07:33:57)
                             'size'  2755565