======================== unified (from filesystem) ========================
                                         'bitrate'  '251.221'
                                        'duration'  '233'
                                          'artist'  'Hey Saturday Sun'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Night City Lights - YouTube'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-2', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['ambient', 'electronic', 'post-rock', 'italiani', 'synthwave']"
                                     'discogstags'  "['electronic', 'synth-pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '36'
                                      'tracktotal'  ''
                                            'date'  '2015'
                                        'comments'  ''
                                           'genre'  'electronic-we-synthwave or chillwave or retrowave'
                                             'bpm'  '114.9'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '114.9'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-synthwave or chillwave or retrowave'
'TDRC' (Recording time)                             '2015'
'TIT2' (Title/songname/content description)         'Night City Lights - YouTube'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Hey Saturday Sun'
'TRCK' (Track number/Position in set)               '36'
'TXXX:Encoding time'                                '2017-11-04 12:43:17'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:Software'                                     'Lavf54.63.104'
'TXXX:discogstags'                                  ['electronic', 'synth-pop']
'TXXX:lastfmtags'                                   ['ambient', 'electronic', 'post-rock', 'italiani', 'synthwave']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.69 dB'
'TXXX:replaygain_track_peak'                        '0.546165'

========================== row from database ==========================
                                              'id'  1295511
                                            'path'  /data/Music/Bulk/00poprockelectronic-waves-disco/00synthwave/Don Dellpiero - Synthwave/Hey Saturday Sun - Night City Lights - YouTube.mp3
                                         'working'  None
                                         'bitrate'  251
                                    'duration_sec'  233
                                           'genre'  electronic-we-synthwave or chillwave or retrowave
                                        'filesize'  7339545
                                           'mtime'  1620608898
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic waves disco 00synthwave Don Dellpiero Synthwave electronic we synthwave or chillwave or retrowave
                                      'tag_artist'  Hey Saturday Sun
                                     'tag_release'  None
                                       'tag_title'  Night City Lights - YouTube
                                             'bpm'  114.9
                                    'search_title'  'city':2 'lights':3 'night':1 'tube':6 'you':5 'youtube':4
                                   'search_artist'  'hey':1 'saturday':2 'sun':3
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '00synthwave':4 'chillwave':11 'dellpiero':6 'disco':3 'don':5 'electronic':8 'or':10 'retrowave':12 'synthwave':7 'waves':2 'we':9
                                    'search_combo'  '00poprockelectronic':10 '00synthwave':13 'chillwave':20 'city':2A 'dellpiero':15 'disco':12 'don':14 'electronic':17 'hey':7B 'lights':3A 'night':1A 'or':19 'retrowave':21 'saturday':8B 'sun':9B 'synthwave':16 'tube':6A 'waves':11 'we':18 'you':5A 'youtube':4A
                                    'tag_tracknum'  36
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['ambient', 'electronic', 'post-rock', 'italiani', 'synthwave']
                                        'tag_date'  2015
                                     'discogstags'  ['electronic', 'synth-pop']

============================== file details ==============================
                                           'mtime'  1620608898.4826698  (2021-05-10 03:08:18)
                             'size'  7339545