<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '328'
                                          'artist'  "Roger O'Donnell"
                                     'text_people'  "Roger O'Donnell"
                                         'release'  'Shirley &amp; Spinoza'
                                           'title'  'Another Year Away'
                                           'quals'  ("['Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', 'q-chart-1', "
 "'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-2']")
                                      'lastfmtags'  "['electronic', 'ambient', 'groovesalad', 'lush', 'instrumental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '17'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'soundtrack-unsorted;mi-guitar;set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '84.210'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f95382f1e50>

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'PRIV:PeakValue:¡~\x00\x00'                         PRIV(owner='PeakValue', data=b'\xa1~\x00\x00')
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'PRIV:WM/Provider:A\x00M\x00G\x00\x00\x00'          PRIV(owner='WM/Provider', data=b'A\x00M\x00G\x00\x00\x00')
'PRIV:WM/UniqueFileIdentifier:A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x007\x001\x000\x005\x009\x004\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00M\x00S\x00T\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x007\x002\x002\x006\x006\x007\x003\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x007\x001\x000\x005\x009\x004\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00M\x00S\x00T\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x007\x002\x002\x006\x006\x007\x003\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:.65\x11s\x17óC\x8eÞïE[ÓÔ\x83'  PRIV(owner='WM/WMCollectionGroupID', data=b'.65\x11s\x17\xf3C\x8e\xde\xefE[\xd3\xd4\x83')
'PRIV:WM/WMCollectionID:.65\x11s\x17óC\x8eÞïE[ÓÔ\x83'  PRIV(owner='WM/WMCollectionID', data=b'.65\x11s\x17\xf3C\x8e\xde\xefE[\xd3\xd4\x83')
'PRIV:WM/WMContentID:Õd\x81gR\x83áN\x81\x8e¿\x8aÏ*ï\x96'  PRIV(owner='WM/WMContentID', data=b'\xd5d\x81gR\x83\xe1N\x81\x8e\xbf\x8a\xcf*\xef\x96')
'TALB' (Album/Movie/Show title)                     'Shirley &amp; Spinoza'
'TBPM' (BPM (beats per minute))                     '84.210'
'TCOM' (Composer)                                   "Roger O'Donnell"
'TCON' (Content type, a.k.a. Genre)                 ['soundtrack-unsorted', 'mi-guitar', 'set-pl-shirleyspinoza', 'set-pl-mor']
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Another Year Away'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '329160'
'TPE1' (Lead performer(s)/Soloist(s))               "Roger O'Donnell"
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Warner Bros.'
'TRCK' (Track number/Position in set)               '17'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['electronic', 'ambient', 'groovesalad', 'lush', 'instrumental']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.89 dB'
'TXXX:replaygain_track_peak'                        '0.351160'

========================== row from database ==========================
                                              'id'  1519355
                                            'path'  /data/Music/Bulk/sns/Roger O_donnell - Another Year Away.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  328
                                           'genre'  soundtrack-unsorted;mi-guitar;set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  13158752
                                           'mtime'  1620334537
                                   'redo_metaread'  0
                                        'rest_str'   sns O_donnell soundtrack unsorted;mi guitar;set pl shirleyspinoza;set pl mor
                                      'tag_artist'  Roger O'Donnell
                                     'tag_release'  Shirley & Spinoza
                                       'tag_title'  Another Year Away
                                             'bpm'  84.21
                                    'search_title'  'another':1 'away':3 'year':2
                                   'search_artist'  'donnell':3 'o':2 'odonnell':4 'roger':1
                                  'search_release'  'shirley':1 'spinoza':2
                                     'search_rest'  'donnell':3 'guitar':9,11 'mi':6,8 'mor':18 'o':2 'pl':13 'set':10,12,15,17 'shirleyspinoza':14,16 'sns':1 'soundtrack':4 'unsorted':5,7
                                    'search_combo'  'another':1A 'away':3A 'donnell':6B,12 'guitar':18,20 'mi':15,17 'mor':27 'o':5B,11 'odonnell':7B 'pl':22 'roger':4B 'set':19,21,24,26 'shirley':8C 'shirleyspinoza':23,25 'sns':10 'soundtrack':13 'spinoza':9C 'unsorted':14,16 'year':2A
                                    'tag_tracknum'  17
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-4', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'ambient', 'groovesalad', 'lush', 'instrumental']
                                        'tag_date'  2004
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620334537.3737683  (2021-05-06 22:55:37)
                             'size'  13158752