======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '91'
                                          'artist'  'Cicada'
                                     'text_people'  ''
                                         'release'  'Technology Crisis'
                                           'title'  'A Flower Among the Wreckage'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-4', 'q-bass-3', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['dance', 'house', 'electronica', 'electronic', 'post rock']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '7'
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'electronic-we-beeps or chip or pico'
                                             'bpm'  '145.685'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 000011B3 000004C1 0000C9D4'
'COMM:iTunNORM:eng'                                 (' 000011B3 000004C1 0000C9D4 00006A54 0001473E 00014A9C 00007DCE 00007E23 '
 '0001480F 0001459C')
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000A50 00000000003D5EA0 00000000 00000000 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TALB' (Album/Movie/Show title)                     'Technology Crisis'
'TBPM' (BPM (beats per minute))                     '145.685'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-beeps or chip or pico'
'TDRC' (Recording time)                             '2006'
'TENC' (Encoded by)                                 'iTunes v6.0.5'
'TIT2' (Title/songname/content description)         'A Flower Among the Wreckage'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Cicada'
'TRCK' (Track number/Position in set)               '6/7'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['dance', 'house', 'electronica', 'electronic', 'post rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.63 dB'
'TXXX:replaygain_track_peak'                        '0.422327'

========================== row from database ==========================
                                              'id'  1296684
                                            'path'  /data/Music/Bulk/00poprockelectronic/00beepy/Cicada/Technology Crisis/06 A Flower Among the Wreckage.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  91
                                           'genre'  electronic-we-beeps or chip or pico
                                        'filesize'  1826845
                                           'mtime'  1621695928
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00beepy 06 electronic beeps or chip or pico
                                      'tag_artist'  Cicada
                                     'tag_release'  Technology Crisis
                                       'tag_title'  A Flower Among the Wreckage
                                             'bpm'  145.685
                                    'search_title'  'a':1 'among':3 'flower':2 'the':4 'wreckage':5
                                   'search_artist'  'cicada':1
                                  'search_release'  'crisis':2 'technology':1
                                     'search_rest'  '00beepy':2 '00poprockelectronic':1 'beeps':4 'chip':6 'electronic':3 'or':5 'pico':7
                                    'search_combo'  '00beepy':10 '00poprockelectronic':9 'a':1A 'among':3A 'beeps':12 'chip':14 'cicada':6B 'crisis':8C 'electronic':11 'flower':2A 'or':13 'pico':15 'technology':7C 'the':4A 'wreckage':5A
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-4', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['dance', 'house', 'electronica', 'electronic', 'post rock']
                                        'tag_date'  2006
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621695927.6174626  (2021-05-22 17:05:27)
                             'size'  1826845