======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '231'
                                          'artist'  'Shirley & Spinoza'
                                     'text_people'  ''
                                         'release'  'Shirley & Spinoza'
                                           'title'  "Half Eating: Baby Lion's Nightmare"
                                           'quals'  ("['Q-OLDST-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', "
 "'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-1']")
                                      'lastfmtags'  "['eclectic', 'collage music', 'tape music', 'avant garde', 'oldies']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '90.010'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 000001A0 00000156 000017C9 00'
'COMM:iTunNORM:eng'                                 (' 000001A0 00000156 000017C9 00002231 0001A5A1 0000AA82 00008E8A 000076F9 '
 '00000C0A 0000898D')
'TALB' (Album/Movie/Show title)                     'Shirley & Spinoza'
'TBPM' (BPM (beats per minute))                     '90.010'
'TCON' (Content type, a.k.a. Genre)                 ['set-pl-shirleyspinoza', 'set-pl-mor']
'TENC' (Encoded by)                                 'iTunes v4.7'
'TIT2' (Title/songname/content description)         "Half Eating: Baby Lion's Nightmare"
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Shirley & Spinoza'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['eclectic', 'collage music', 'tape music', 'avant garde', 'oldies']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-2.51 dB'
'TXXX:replaygain_track_peak'                        '1.113642'

========================== row from database ==========================
                                              'id'  1507969
                                            'path'  /data/Music/Bulk/sns/SNSarchive/SBQ2_RunAndCry/26_Half Eating  Baby Lion_s Nightmare.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  231
                                           'genre'  set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  5579134
                                           'mtime'  1620357015
                                   'redo_metaread'  0
                                        'rest_str'   sns SNSarchive SBQ2_RunAndCry 26_Half Lion_s set pl shirleyspinoza;set pl mor
                                      'tag_artist'  Shirley & Spinoza
                                     'tag_release'  Shirley & Spinoza
                                       'tag_title'  Half Eating: Baby Lion's Nightmare
                                             'bpm'  90.01
                                    'search_title'  'baby':4 'eating':2,3 'half':1 'lion':5 'lions':7 'nightmare':8 's':6
                                   'search_artist'  'shirley':1 'spinoza':2
                                  'search_release'  'shirley':1 'spinoza':2
                                     'search_rest'  '26':5 'and':18 'cry':19 'half':6 'lion':7 'mor':15 'pl':10 'run':17 'runandcry':4 's':8 'sbq2':3,16 'set':9,12,14 'shirleyspinoza':11,13 'sns':1 'snsarchive':2
                                    'search_combo'  '26':17 'and':30 'baby':4A 'cry':31 'eating':2A,3A 'half':1A,18 'lion':5A,19 'lions':7A 'mor':27 'nightmare':8A 'pl':22 'run':29 'runandcry':16 's':6A,20 'sbq2':15,28 'set':21,24,26 'shirley':9B,11C 'shirleyspinoza':23,25 'sns':13 'snsarchive':14 'spinoza':10B,12C
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-1', 'q-other-1', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['eclectic', 'collage music', 'tape music', 'avant garde', 'oldies']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620357015.0183005  (2021-05-07 05:10:15)
                             'size'  5579134