======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '309'
                                          'artist'  "Sinead O'Connor"
                                     'text_people'  ''
                                         'release'  'top100'
                                           'title'  'Nothing compares to you'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'q-syn-3', 'q-bass-1', 'q-busy-3', "
 "'q-grit-2', 'q-play-2', 'Q-OLDST-3', 'q-chart-3', 'q-drums-3', 'q-other-3', "
 "'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-3', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['female vocalists', 'irish', 'alternative', 'singer-songwriter', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '119.829'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'top100'
'TBPM' (BPM (beats per minute))                     '119.829'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TIT2' (Title/songname/content description)         'Nothing compares to you'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               "Sinead O'Connor"
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Mp3gain_minmax'                               '094,189'
'TXXX:Mp3gain_undo'                                 '+003,+003,N'
'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:Tracknum'                                     '034'
'TXXX:lastfmtags'                                   ['female vocalists', 'irish', 'alternative', 'singer-songwriter', 'rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.74 dB'
'TXXX:replaygain_track_peak'                        '0.586023'

========================== row from database ==========================
                                              'id'  1516197
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/top100/034-Sinead_O_Connor-Nothing_compares_to_you.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  309
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  4961176
                                           'mtime'  1621854166
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat 034 Sinead_O_Connor Nothing_compares_to_you electronic generic radio dance
                                      'tag_artist'  Sinead O'Connor
                                     'tag_release'  top100
                                       'tag_title'  Nothing compares to you
                                             'bpm'  119.829
                                    'search_title'  'compares':2 'nothing':1 'to':3 'you':4
                                   'search_artist'  'connor':3 'o':2 'oconnor':4 'sinead':1
                                  'search_release'  'top100':1
                                     'search_rest'  '00poprockelectronic':1 'compares':9 'connor':7 'dance':3 'electronic':12 'generic':2 'nothing':8 'o':6 'radio':13 'sinead':5 'to':10 'trapbeat':4 'you':11
                                    'search_combo'  '00poprockelectronic':10 'compares':2A,18 'connor':7B,16 'dance':12 'electronic':21 'generic':11 'nothing':1A,17 'o':6B,15 'oconnor':8B 'radio':22 'sinead':5B,14 'to':3A,19 'top100':9C 'trapbeat':13 'you':4A,20
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['female vocalists', 'irish', 'alternative', 'singer-songwriter', 'rock']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621854166.1188955  (2021-05-24 13:02:46)
                             'size'  4961176