======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '187'
                                          'artist'  'Vanity Fair'
                                     'text_people'  ''
                                         'release'  'Billboard Top Pop Singles of 1970'
                                           'title'  "Hitchin' a Ride"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-UNU-1', 'q-syn-2', 'Q-PLAY-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-3', 'q-drums-2', 'q-other-2', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['pop', 'synthpop', 'new romantic', 'rock', 'sweden']"
                                     'discogstags'  "['new wave', 'electronic', 'synth-pop', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  ''
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted'
                                             'bpm'  '136.184'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'Billboard'
'TALB' (Album/Movie/Show title)                     'Billboard Top Pop Singles of 1970'
'TBPM' (BPM (beats per minute))                     '136.184'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-unsorted'
'TDRC' (Recording time)                             '1970'
'TIT2' (Title/songname/content description)         "Hitchin' a Ride"
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Vanity Fair'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '14'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['new wave', 'electronic', 'synth-pop', 'pop']
'TXXX:lastfmtags'                                   ['pop', 'synthpop', 'new romantic', 'rock', 'sweden']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.45 dB'
'TXXX:replaygain_track_peak'                        '0.518835'

========================== row from database ==========================
                                              'id'  1515929
                                            'path'  /data/Music/Bulk/00poprockelectronic/Billboard/Billboard Top100/1970/014 - Vanity Fair - Hitchin_ a Ride.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  187
                                           'genre'  electronic-generic or radio-unsorted
                                        'filesize'  3764376
                                           'mtime'  1628353535
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Top100 014 Hitchin_ electronic generic or radio unsorted
                                      'tag_artist'  Vanity Fair
                                     'tag_release'  Billboard Top Pop Singles of 1970
                                       'tag_title'  Hitchin' a Ride
                                             'bpm'  136.184
                                    'search_title'  'a':3 'hitchin':1,2 'ride':4
                                   'search_artist'  'fair':2 'vanity':1
                                  'search_release'  '1970':6 'billboard':1 'of':5 'pop':3 'singles':4 'top':2
                                     'search_rest'  '00poprockelectronic':1 'electronic':4 'generic':5 'hitchin':3 'or':6 'radio':7 'top100':2 'unsorted':8
                                    'search_combo'  '00poprockelectronic':13 '1970':12C 'a':3A 'billboard':7C 'electronic':16 'fair':6B 'generic':17 'hitchin':1A,2A,15 'of':11C 'or':18 'pop':9C 'radio':19 'ride':4A 'singles':10C 'top':8C 'top100':14 'unsorted':20 'vanity':5B
                                    'tag_tracknum'  14
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['pop', 'synthpop', 'new romantic', 'rock', 'sweden']
                                        'tag_date'  1970
                                     'discogstags'  ['new wave', 'electronic', 'synth-pop', 'pop']

============================== file details ==============================
                                           'mtime'  1628353535.1876216  (2021-08-07 18:25:35)
                             'size'  3764376