======================== unified (from filesystem) ========================
                                         'bitrate'  '161.592'
                                        'duration'  '429'
                                          'artist'  'Nullsleep'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Promo Mix 2010'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-4', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['8bitpeoples', '8 bit', 'chiptune', '8bit', 'electronic']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'electronic-we-beeps or chip or pico'
                                             'bpm'  '140.238'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '140.238'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-beeps or chip or pico'
'TDRC' (Recording time)                             '2010'
'TIT2' (Title/songname/content description)         'Promo Mix 2010'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Nullsleep'
'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'                                   ['8bitpeoples', '8 bit', 'chiptune', '8bit', 'electronic']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.54 dB'
'TXXX:replaygain_track_peak'                        '0.584315'

========================== row from database ==========================
                                              'id'  1295506
                                            'path'  /data/Music/Bulk/00poprockelectronic/00beepy/Nullsleep/01-nullsleep-collapsed_desires_promo_mix.mp3
                                         'working'  None
                                         'bitrate'  162
                                    'duration_sec'  429
                                           'genre'  electronic-we-beeps or chip or pico
                                        'filesize'  8677134
                                           'mtime'  1647348181
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00beepy nullsleep collapsed_desires_promo_mix electronic we beeps or chip or pico
                                      'tag_artist'  Nullsleep
                                     'tag_release'  None
                                       'tag_title'  Promo Mix 2010
                                             'bpm'  140.238
                                    'search_title'  '2010':3 'mix':2 'promo':1
                                   'search_artist'  'nullsleep':1
                                  'search_release'  
                                     'search_rest'  '00beepy':2 '00poprockelectronic':1 'beeps':10 'chip':12 'collapsed':4 'desires':5 'electronic':8 'mix':7 'nullsleep':3 'or':11 'pico':13 'promo':6 'we':9
                                    'search_combo'  '00beepy':6 '00poprockelectronic':5 '2010':3A 'beeps':14 'chip':16 'collapsed':8 'desires':9 'electronic':12 'mix':2A,11 'nullsleep':4B,7 'or':15 'pico':17 'promo':1A,10 'we':13
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', 'q-syn-4', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-2', 'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-1']
                                      'lastfmtags'  ['8bitpeoples', '8 bit', 'chiptune', '8bit', 'electronic']
                                        'tag_date'  2010
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1647348180.5952458  (2022-03-15 13:43:00)
                             'size'  8677134